Counting words in java using HashMap: This program demonstrates the use of HashMap in java to count the number of words.First, we take the string from user input using Scanner class and store it in a string “str“. After then, using the java split() function for spaces(” “) we separate the words from spaces to … Read more
White Space removal program in java:In this post, we will learn how to remove white spaces from a string in java. We will learn the two ways to remove white spaces in java. First by using in-built methods called replaceAll() and second without the use of in-built methods (for loop). 1. Java program to remove … Read more
We write a program to find duplicate characters in a string in java. For example, consider a string “nut cutter“, duplicate characters in it are : u: 2, t : 3. Program Approach: First, we created a string variable and take the user input for a string to compare with. And initialize a variable num … Read more
This article on Anagram Program in java is to check for the two strings for Anagrams.Let start by understanding What is Anagram? What is Anagram? Two strings are said to be in an anagram if they contain the same set of characters but in a different order. For example: “Keep – peek”, “School Master – … Read more
Palindrome: A string is said to be in a Palindrome if it remains the same when its elements are reversed or are the same as forward. For example: 14141, 777, 272 are palindrome numbers as they remain the same even if reversed. If we take the example of ‘mam’ or ‘madam’, these are also palindrome … Read more
In this tutorial, we will write a program to reverse a string in Java. It means displaying the string from backward. Consider the string reverse, we write a java program in various ways to reverse it and it will be displayed as esrever. Some of the ways to do it are using: for loop recursion … Read more
This post shows, How to remove all vowels from a string in java? with the help of replaceAll() method. Remove vowels from a string in java: Explanation:Removing vowels in java is easy, we will take the user input with the help of a Scanner class. we will use replaceAll() which takes in two parameters, one is … Read more