This article will show you how to print a simple pyramid pattern of stars in java. Patterns are one of the easiest ways to improve the coding skills for java. The frequent use of loops can increase your skills and printing pattern order. We will see two programs: To print a full pyramid by declaring the number … Read more
This is a tutorial on how to write a java program to display the second largest element in an array. Find the second-largest element in an array: In the below program, we take the user input for How many elements does a user wants in an array and what are the elements with the help … Read more
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
This post shows how to find a square root of a number in java. We will learn two methods to find the square root one by an in-built math method called Math.sqrt() and the other by using do-while loop.let’s begin. 1. Program to find square root using Math.sqrt() in java This is a simple and … 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
In this tutorial, we will learn to write a Java program to remove duplicates from an ArrayList, we will learn to remove duplicate elements by various approaches. ArrayList is a collection type used mostly in java. It is the list interface from Java’s collection framework that allows duplicates in its list. It provides insertion order, … 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
What is a palindrome number? A number is said to be a Palindrome number if it remains the same when its digits are reversed or are the same as forward. It is also applied to the word, phrase, or other sequences of symbols. For example: 14141, 777, 272 are palindrome numbers as they remain the … 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