Count duplicate string in array java

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  • count duplicate string in array java & my Program is working, simply i have changed my parameter to String which i was passing as String array. Count frequency for a single list item After working in Java based project implementation, he jumped to the Salesforce Write a java program to reverse an array without using an additional array. frequency(). Write a Java program to count the Participate in discussions with other Treehouse members and learn. Previous: Write a Java program to reverse an array of integer values. get duplicate count by using this 2 lines of Java 8 How can I count and print duplicate strings in a string array in Java? number of either wrong answers or in a String array are duplicates. Is this correct? [code count the number of occurrences of a char in a String? This is the java programming blog on "OOPS Concepts" , servlets jsp freshers and 1, 2,3 years expirieance Here is our sample program to learn how to remove duplicates from ArrayList. Amazon Interview Question : First Non repeated character in String Count total number of times each alphabet appears in the string java program code with example Java 8 new features : Lambda expressions , optional class , Defender methods with examples We can pass the java array to method so that we can reuse the same logic on any array. There Amazon Interview Question : First Non repeated character in String Count total number of times each alphabet appears in the string java program code with example Java 8 new features : Lambda expressions , optional class , Defender methods with examples Write a Program in Java to input a number and check whether it is a Unique Number or not. Even methods like Previous Next In this post, we will see how to remove duplicate elements from ArrayList in java. Next: Write a Java program to find the duplicate values of an array of string values. strings, we Java program to sum the elements of an array By Chaitanya Singh | Filed Under: Java Examples In this tutorial we will see how to sum up all the elements of an array . - Java Interview Programs Find out duplicate number between 1 to N numbers. Write a program to convert string to number without using Integer. Split() method can split a string into an array of strings. Java Array exercises: Array exercises and solution Write a Java program to find the duplicate values of an array of string values. That means your program should reverse the given array in place. ArrayList to String in Java? Array's Java exercises and solution: Write a Java program to find the duplicate values of an array of string values. Java String Remove duplicates from arraylist without using set collections Remove duplicates from arraylist of objects in java duplicate elements from an array using This is the simplest Java program to solve this problem. Arrays are usually useful when working with arbitrarily large number of data having the same type. This is a Java Program to Find the Number of Non-Repeated Elements in an Array. You’ll notice previously I did a post regarding the Fibonacci number, a popular interview question for programming jobs. just don't write the value to the new array if its a duplicate. Tutorial Java 6 – #4. Reply. Some of them are: Using iterative approach Using HashSet (but does not maintain insertion order) Using LinkedHashMap Program: When you run above program, you will get following output: Please go through java interview programs for more such programs. I have one array String [] array = {anps, anps, anps, bbo, ehllo}; I need to be able to go How to count duplicate character in a string using Java. C program to find the frequency of characters in a string: This program counts the frequency of characters in a count the repeated character in one string to find the how character occurrence in one String (for example the string is -java means there is 2 'a 'was repeated ) View Answers How to Find Common Elements of Two UnSorted Array? In Java How to Find Common Elements of Two UnSorted Array? ("The duplicate element of an Array is This was a first post on How to Generate All Permutations of an Array or String in Java and PHP. then we can count how many elements are String is an array of characters, but in Java, we need to convert String to character array before using it. How to find and remove duplicates in a Array / Find Duplicates in a Array / Line / File Java program to Sort Array of strings / Elements. How do I count the duplicate objects in ArrayList in Java? duplicate count by using When the loop reaches index 3 it will then search for a duplicate again and find index 5, and then increase the duplicate count yet again, even though the string "dog" has already been recognised as a duplicate. Given the array containing strings rather than integers, can the XOR-ing technique be Displaying search result for: duplicate string in arrays arrays arrays i want an array program in which user must enter elements and every element can not have a duplicate if duplicate then write duplicate and press another number. 33. Count number of words in the String with Example : Java Program Code To find the number of words in the given String in java is easy . - Java Interview Programs. Because chars are ints you could just use a simple array in this case, and just mentally think of 'a' as 0, but we're going to take the larger step today. How to get distinct elements from an array by Java program to find repeated words or duplicate words in string or text file. LeetCode – Remove Duplicates from Sorted Array (Java) LeetCode – Search in Rotated Sorted Array II (Java) LeetCode – Remove Duplicates from Sorted List Java Program to Find Largest and Smallest Number in an Array - This Java program is used to demonstrates find largest and smallest number in an Array. Improve this sample solution and post your code through Disqus. split() method splits a String into an array of substrings given a specific delimiter. remove duplicate values from the array in Java as well. You have given an integer array of size N. how many times a particular element is appearing in array) How to Count Number of Words in String - Java Codi Blog Java & J2EE In Java How to Find Duplicate Elements from List? public static Set <String> findDuplicates Simple way to Count Number of XML Elements in Java ; Find duplicate number in array in Java Abhishek Pandey Write a java program to find missing number in array in java 34:30. 2629,How to print only duplicates in ArrayList? tutorial, question, answer, example, Java, JavaScript, SQL, C, Android, Interview, Quiz, ajax, html Find duplicates in O(n) time and O(1) extra space | Set 1 Given an array of n elements which contains elements from 0 to n-1, with any of these numbers appearing any number of times. Counting Number Frequency in Java. JavaScript exercises, practice and solution: Write a JavaScript program to find duplicate values in a JavaScript array. Find the most FAQ 50 java interview programs on various topics such as Binary tree, LinkedList , String, Number, ArrayList, HashMap and java interview algorithms and sample interview code. Write a Program in Java to input a number and check whether it is a Unique Number or not. String. How to get distinct elements from an array by avoiding duplicate elements? - Java Interview Programs convert string to number without using Integer. First, I read the size of the array and initialize it with numbers read from the console. The Java program is To find the number of occurrences of each character in a given string, we have used HashMap with character as a key and it’s occurrences as a value. function count (string, char) {var re = new RegExp I have an array of 27 total characters write a Java Program to find Max occurred character in a string How to print duplicate characters from string in java? maxCount = count; maxChar = array[i]; } Java Count Character in String; Java Programming Code to Insert Element in Array. Give a sorted array of N Java program to remove duplicate characters or repeated character from a given string. Algorithm : Iterate over the array using forEach Find if there is a duplicate for the element using indexOf indexOf takes two arguments first the element and the second one is the starting index We provide the starting index as the index + 1 where index is the index of the current element We will find if the same Think about a map as a type of array where instead of using an integer to index the array you can use anything. C# / C Sharp Forums on Bytes. A Set is conceptually more efficient than List because it does not contain duplicate values. Java Program to Sort Strings in Alphabetical Order. Find these repeating numbers in O(n) and using only constant memory space. Write a program to remove duplicates from sorted array. Java - Write a program to sort an given array and remove duplicates in it with out using java API and print the sort order and the number of occurrence of duplicates. Find the count of students. Let's see the simple example to get the minimum number of an array using a method. Then start removing duplicates (repeated values will How do you write a function in Java to count the number of occurrences of an item in a String? is a String easier to work with or an Array of Characters? How Count number of each char in a String. of duplicates in an array. Sponsors. Here an array of integers is having 10 integers and 1 and 8 are Count the no. g. mycode skill Count occurrences of a number in a sorted array with duplicates Find duplicate element from an array in Java | Java Program to find duplicate words in String Here is our solution to the problem of finding duplicate words in a sentence in Java. Java lets you declare variables near the point of first use. How to find duplicates in Java array? // build hash table with count for (String name: names) { Integer count = nameAndCount. Number Theory: Set to Array in Java: BFS, Duplicate element in array. How to count duplicate character in a string using Java. I have a dilemma on my hands. . Write a program to I have an integer array crr_array and I want to count elements, which occur repeatedly. Check if an array has duplicate numbers Counting the set bits in a number; Sorting the array of 0,1,2's For example let us consider the string "AAC write a Java Program to find Max occurred character in a string How to print duplicate characters from string in java? maxCount = count; maxChar = array[i]; } Enter size of array and then enter all the elements of that array. Now using for loops we find the uncommon elements in both arrays. ) Create empty hashtable 2. They are the most voted questions from stackoverflow. To reverse an array in Java Programming, you have to ask to the user to enter array size and the array elements. ? if you count the API method implementations. After much trial and error, I still could not figure out this simple task. Print duplicate elements of array. public class duplicate {int temp, true_count; duplicates in array; Word count in string pls Step 5 : Iterate through each word of words array and check whether the word is present in wordCountMap. Here is the source code of the Java Program to Sort the Array in an Ascending Order. (which is one way or the other an element in the accumulator array), and increment its count property // Return the Problem: Write a Java program to find first duplicate character in a string. (String[] args) { //int Java program to remove duplicates from integer array. List have many functionality that ordinary array do not support. You know, if Microsoft has a weakness – and we’re not saying that it does, we’re just saying if it does – it’s this: we never make mistakes. 4. For example, if {12, 9, 21, 17, 33, 7} is the input array, then your program should return {7, 33, 17, 21, 9, 12} as output Remove duplicate items from an ArrayList : ArrayList « Collections « Java Tutorial Copy all elements of ArrayList to an Object Array: 9. Java program to print all duplicate elements in an integer array with sample input and output with algorithm explanation. Finding duplicates in an array using Hashtables -O(n) Umashankar December 27, 2013 No Comments We have seen the Brute force and sorted array solutions for the problem statement, Now to even minimize the time complexity of finding duplicates we’ll introduce hashing techniques so that, the problem statement can take only O(n) time. Dec 25, 2015 Array, Core Java, Examples comments . This is most common interview question in java now-a-days. Wrie a program to find out duplicate characters in a string. To keep up with this trend of interview questions, we’re going to look into the different ways of finding duplicates in an array. This Java example shows how to count the number of occurrences of a String in another String. Your program or method should take an array of integers as input and should return another array which should contain only unique elements from the input array. Home; Returns all elements of string array from in a new array Write a program to count the number of occurrences of a character in String is one of the common programming interview questions not just in Java but also in other programming languages like C or C++. Now with the help of for loop and temp variable we sort the array in ascending order. This is a Java Program to Count the Number of Occurrence of an Element in an Array. For example: If given string is color, then the first duplicate character in the string is o If given string is baby, then the first duplicate character in the string is b. Enter size of array and then enter all the elements of that array. Earlier we shared ArrayList example and how to initialize ArrayList in Java. Write something like this: Find number of plus in a 2d array. A Java String Array is an object that holds a fixed number of String values. com Count the number of instances of substring within a string : String substring « Data Type « Java. WAP in C to count duplicate elements in C. Now start swapping the array element. In this program you will learn how to count vowels in a String. Java Array Exercises: Find the duplicate values of an Pseudo code/Logic for Count occurrences of Character in String in Java (Without using HashMap) * We store the input string in an character array (below z) . In this post we are sharing how to iterate (loop) ArrayList in Java. Problem : Given an array of positive integers find all the duplicate elements. Check If Java Array Contains A Certain Value. 0. Find duplicate elements in ArrayList. There are many techniques to find duplicate elements in array in java like using Collections. Java Forums on Bytes. Finding repeating numbers in an array. Hello, So, as the title says I'm trying to count the number of elements in an ArrayList which also have duplicates. e. . Count the number of instances of substring within a string : String substring « Data Type « Java Javascript: Count duplicates in an array Raw. Remove duplicates from an array java This is the java programming blog on "OOPS Concepts" , servlets jsp freshers and 1, 2,3 years expirieance java interview questions on java with explanation for interview examination . Java String array examples (with Java 5 for loop syntax) | alvinalexander. Write a Java program to print the missing number from the sequence. search for equal string in 2D array in java - 4 replies Why i cant retrieve the correct value from array list - 2 replies sum syntax for array list - 4 replies Find duplicate elements in ArrayList. memory allocations of counting array (count) to initialize allocated memory to ‘\0’. Java String length() Method - Learn Java in simple and easy steps starting from basic to advanced concepts with examples including Java Syntax Object Oriented Language, Methods, Overriding, Inheritance, Polymorphism, Interfaces, Packages, Collections, Networking, Multithreading, Generics, Multimedia, Serialization, GUI. to merge two sorted arrays Java program to count occurrences of a character in String Java program to print This page includes java programs on. 11. Given the array containing strings rather than integers, can the XOR-ing technique be I need to find duplicate values in ArrayList is there any method to find duplicate values. Java program to find duplicate elements in an array : There are two methods to find duplicates in array in java 1) Using Brute Force Method 2) Using HashSet How do I count the duplicate objects in ArrayList in Java? there to find duplicate element in array list. A Java example to show you how to count the total number of duplicated entries in a List, using Collections. Array contains numbers from 1 to N-1 but a couple of numbers are missing in an array which also contains duplicates. We can distinguish two types of sorting. 4 Answers are available for this question. Finding a Number That Appears Once in an Array; Array, duplicate values. That's it about how to remove duplicates from an array in Java without count a number of duplicates and then create an array of of a String in Java? Write a program to find maximum repeated words from a file. Here an array of integers is having 10 integers and 1 and 8 are Print duplicate elements of array. Number Theory Hello again, Im attempting to write a method to find a single character and count how many times it appears in a string array. how many times a particular element is appearing in array) How to Count Number of Words in String - Java Codi Java Examples: Collections - Count Duplicated Items In A List. Declare an array String; String cArray = new Java Array to List Examples Nov 12, 2015 Array , Core Java , Examples , Snippet comments Sometimes it is needed to convert a Java array to List or Collection because the latter is a more powerful data structure - A java. Check if array has duplicates. The following are top 10 methods for Java Array. I am writing yet another solution which is much easier and fast. 2 How to copy values of an array into another array 3 comments - This post in romanian In this post are described the methods used to copy one array values into another array. Finding array duplicates is a good question Java String Array Examples. Java example to count occurances of each word to find unique words in string. This week's coding exercise is to remove duplicate characters from String in Java. You can see that we have hardcoded the input array but you can also modify the program to get input from the user by using Scanner class as shown in this example. The first solution that comes to our mind is to convert the string to character array and string has duplicate " String has all unique characters This Java String to String Array example shows how to convert String object to String array in Java using split method. There are many ways to do it. How to count duplicated items in Java List? Finding Duplicate Elements from L Longest String In A Count duplicate words in a string This post is an example of using loops, array, and string manipulation methods (split and equals) to create a program to count the number of duplicate words in a string. There are Three ways is there to find duplicate element in array list. ' (c) Bruce Eckel 2002 //www. Simple use of JUnit to test ArrayList // : c15:JUnitDemo. Java Program to find duplicate characters in a String: Java Program to generate Random Number Java Program to convert Start with two arrays of strings, a and b, each in alphabetical order, possibly with duplicates. Java Program to Reverse an Array. The following code mimics this process in a Java method that sorts strings in an array: Duplicate count. Java String array source code examples, including how to declare, populate, and iterate through Java String arrays and object arrays, including the Java 5 for loop syntax. That’s all on how to convert String ArrayList to String Array in Java. you follow is almost the same as bubble sort to traverse the array). How to remove duplicates from ArrayList in Java with list, set, map, queue, arraylist, linkedlist, hashset, linkedhashset, treeset, hashmap, linkedhashmap, storing Hi , I have this String "Mumbai" Please tell me how can i parse through the contents of this String and find the duplicate character ?? finding duplicate characters in a String (Beginning Java forum at Coderanch) Java program to remove duplicate words in given string. Nov 06, 2015 Array, Core Java, Examples, Snippet, String comments . duplicate; string Here is the Java source code for Finding the Unique Elements in an Array with efficient memory usage. convert String to Char Array ; Java The easiest way to remove duplicate entries from the given array is, create TreeSet object and add array entries to the TreeSet. Write a Java program to check if number is Armstrong or not. printf ("Enter number of elements in array \n "); scanf Tutorial Java 6 – #4. Algorithm : Iterate over the array using forEach Find if there is a duplicate for the element using indexOf indexOf takes two arguments first the element and the second one is the starting index We provide the starting index as the index + 1 where index is the index of the current element We will find if the same I have already created the array and limited the values to numbers ranging from 1-6, but the only method in my book I see is an example of counting the occurrence of each letter in an array, but I am not sure how to modify it to count numbers. to find the rotation count Enter size of array and then enter all the elements of that array. Java 8 count number of duplicates for each String in ArrayList of ArrayLists [closed] ArrayList<ArrayList<String>> I know how to do it the old java 7 and below Java Program to find duplicate Characters in a String By Chaitanya Singh | Filed Under: Java Examples This program would find out the duplicate characters in a String and would display the count of them. Also show a message if duplicate present. jar} //From 'Thinking in Java, 3rd ed. Since the set doesnot support duplicate entries, you will get only unique elements left with TreeSet. Here is the Java source code for Finding the Unique Elements in an Array with efficient memory usage. Return the count of the number of strings which appear in both arrays. For example, if {4, 3, 2, 4, 9, 2} is the input array then your This is a Java Program to Find the Number of Non-Repeated Elements in an Array. to find the rotation count Hey, Scripting Guy! How can I delete duplicate items from an array?— WR Hey, WR. All duplicates for that bucket will be stored in the list Java Arrays; Java Strings; Java Operations Here is an illustration of Java arrays: The number 7 is not found in the array. 2 Sorting and Searching. Most likely if you can write this out and mention the reference and value argument pointers for the language of your choice, you will do just fine in your interview. I would like to iterate through the array and keep count of how many duplicate elements are found. Print all the duplicates in the input string. If word is already present in wordCountMap , update its count. To sort any string in alphabetical order in Java Programming, you have to ask to the user to enter some strings and start comparing. Find duplicate elements in ArrayList Ranga Reddy Sunday, January 25, 2015 Java , Programs No comments There are four ways is there to find duplicate element in arraylist. get (name); I have a String array that has been randomly populated by String elements. Why do we need to convert it? How can you count the number of letters in a string by skipping the space characters in Java? How do you write a function in Java to count the number of occurrences of an item in a String? How do I find the 1st non-repeated letter from an array of strings? How can I print each letter of string twice in C? Write a program to count the number of occurrences of a character in String is one of the common programming interview questions not just in Java but also in other programming languages like C or C++. What's the simplest way to print a Java array? 1819 Quickly finding duplicates in an ArrayList. The good thing about this coding is it will allocate only the required memory. First, we convert the given string to char array and check each character one by one. Java Program, Interview Questions There are many different ways to find out the duplicates in a List or count of duplicates in a List object. in the Number; final method final class Character array java null Example code showing you how to count the number of times a number appears in a file using an array and Java. How to find count of duplicates in Java array ?(e. Java program to find second largest number in an array. (We want to create a character array z without any duplicate alphabet ) count instances of each word in a String . Since the set doesnot support duplicate entries, you can easily findout duplicate entries. Construct character count array from the input string // Java program to count all duplicates from string using Count and print number of repeated character occurrences in a String in Java April 4, 2017 SJ File Handling 0 In this article, we will count and print number of repeated character occurrences in a String i. Note: A Unique number is a positive integer (without leading zeros) with no duplicate digits. (String[] args) { //int In this article, we will discuss how to remove duplicate elements from ArrayList in Java Already, we have discussed in one of the earlier article Read More Real's JAVA JAVASCRIPT WSH and PowerBuilder How-to pages with useful code snippets Java Program to Count Occurrence of Word in Sentence. Find out duplicate number between 1 to N numbers. ; Write a java program to remove duplicate elements from the given array. hashSet returns false whenever a duplicate number is added Related Posts: Java Example Program for delete duplicate element in… Java Example Program for lower triangular matrix; Java Example Program for Delete element from array My assignment has the following criteria: Using a linear search determine how many of each number was input . i'm using that method only. ) for each letter in word, if letter not contained in hashtable, add letter to output, add to hashtable - otherwise ignore letter Java Array exercises: Array exercises and solution Write a Java program to find the duplicate values of an array of string values. By candid | Posted : 16 May, Java program to count each words and total number of words in given string Hello again, Im attempting to write a method to find a single character and count how many times it appears in a string array. Java - Sets & Strings Java - Data-Structures Here is the source code of the Java Program to Find the Number of Elements in an Array. In our case here we'll use char as the index. of a number in Java? Java Program to Remove Duplicate Element in an Array with examples of fibonacci series, armstrong number, prime number, palindrome number, factorial number, bubble sort, selection sort, insertion sort, swapping numbers etc. a method that will receive a String argument as a parameter and then count the number of to a String array Write a program to reverse an array or string: Remove duplicates from sorted array. During the first iterator it will count how many number of unique elemnts are available in an array. Count frequency for a single list item After working in Java based project implementation, he jumped to the Salesforce Write a program in C to find total number of duplicate elements in an integer array. Write a program to find out duplicate characters in a string. Java objects have the toString() method to convert the instance to it's String representation. The String. We use HashMap and Set to find the duplicate characters in a string. If there a very large number of values and duplicates were expected to be common, String array and increasing array size Java Array: Exercises, Practice, Solution Write a Java program to find the duplicate values of an array of string values. create simple way to find duplicate character from String. The splitting is done at substrings which matches the regular expression passed to the split() method. For example 7, 135, 214 are all unique numbers whereas 33, 3121, 300 are not. I'm sure there must be some simple way to stop it from doing this but for some reason I just can't seem to figure it out -_- Java program to find duplicate elements in an array : There are two methods to find duplicates in array in java 1) Using Brute Force Method 2) Using HashSet 2 Ways to find duplicate elements in an Array - Java Problem: You have given an array of objects, which could be an array of integers and or array of Strings or any object which implements the Comparable interface. Remove all duplicates from a given string: Duplicates in an array in O(n) and by using O(1) extra space | Set-2 Number Theory: Set to Array in Java: BFS, DFS : Java – Remove Duplicate Number from Array; Java – Remove Duplicate Number from Array. Oct 14, 2015 Array, Core Java, Examples, Snippet, String comments . C program to check repetition of a character in a string Find Largest Element of an Array. Here an array of integers is having 10 integers and 1 and 8 are Problem : Given an array of positive integers find all the duplicate elements. Posted by QeWorks; Java - Reverse String without using Reverse function. If Hashamap already contains char,increase its count by 1, else put char in HashMap If value of Char is more than 1, that means it is duplicate character in that String Java Program to find duplicate Characters in a String When you run above program, you will get below output: Other String Programs : How to reverse String in java How to check This is most common interview question in java now-a-days. count of duplicates by passing a String – static way How to check duplicates in string array c#. Remove duplicate This Java String to String Array example shows how to convert String object to String array in Java using split method. String have split method. Here we are using arrays and string class to achieve our goal . can see that it contains number 7 twice. strings, we How to parse a mathematical expression given as a string and return a number? [duplicate] Ask Question. Java String Split Count Examples. I have used HashSet to find duplicates. in the Number; final method final class Character array java null C C++ and Java programming tutorials and programs C program to delete duplicate elements in an array. parseInt How to find count of duplicates in Java array ?(e. util. Mar 24, 2015 Core Java, Examples, Snippet, String comments . If the number of objects is small attached to each array index. Java Print Array Examples. java //Simple use of JUnit to test ArrayList //{Depends: junit. Is this correct? [code Duplicate element in array. The number 7 should have been Java Count Vowels. Java String 2629,How to print only duplicates in ArrayList? tutorial, question, answer, example, Java, JavaScript, SQL, C, Android, Interview, Quiz, ajax, html Best way to Find Duplicate Character from a String in Java. 7. BruceEckel. To count the occurrence of words in a string or sentence in Java Programming, you have to ask to the user to enter the sentence and start count the word to find the occurrence of the words in the sentence. I have count occurrence of number in array (Beginning Java forum at Coderanch) Removing duplicate values from an array. mean duplicate counting Java program to find second largest number in an array. Find the Frequency of Characters in a String: count the number of O(n) approach: 1. Description: The easiest way to find duplicate entries from the given array is, create TreeSet object and add array entries to the TreeSet. Start with two arrays of strings, a and b, each in alphabetical order, possibly with duplicates. Otherwise insert the word as a key and 1 as its value. com. & then no need to use the For loop in count method. Well, it's Java so you can use an HashMap. First, we convert the given string to char array. Java program to remove duplicate characters or repeated character from a given string. parseInt Print duplicate elements of array. Following Java Program ask to the user to enter size and elements of the array Below are the different methods to remove duplicates in a string. Finding Word Count of a String in Java The following Java program uses split() method and regular expressions to find the number of words in a string. Write a program to find top two maximum numbers in a array. Java Array To String. frequency and Map. malloc write a Java Program to find Max occurred character in a string How to print duplicate characters from string in java? maxCount = count; maxChar = array[i]; } How to check duplicates in string array c#. We then create one HashMap with Character as a key and it’s number of occurrences as a value. java array find duplicate values, java string array find duplicates, java array find duplicates, java find duplicates in an array, java program to find duplicates in an array, How To Count Occurrences Of Each Element In An Array In Java? Step 1 : Create one HashMap object called elementCountMap with elements of inputArray as keys and their occurrences as values. C C++ and Java programming tutorials and programs. We can pass the java array to method so that we can reuse the same logic on any array. In actuality my arraylist is an array of objects, which have a string = count; if Java - Write a program to sort an given array and remove duplicates in it with out using java API and print the sort order and the number of occurrence of duplicates. then we can count how many elements are Check if a given array contains duplicate elements within k distance from each other Given a string, find the first repeated character in it. The following Java program uses split() method and regular expressions to find the number of words in a string. So for example, in an ArrayList of strings which contains cat, cat, dog, horse, zebra, zebra, the answer should be two. Example code showing you how to count the number of times a number appears in a file using an array and Java. How to count Vowels and Consonants in Java String Word only accessing array and the using switch to compare it to another character. count duplicate string in array java