Join over 28 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews.

It will cover basic topics in Java language such as classes, data structures, inheritance, exception handling, etc. You are expected to be proficient in either Java 7 or Java 8.

Join over 28 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews.

Welcome to the world of Java! In this challenge, we practice printing to stdout. The code stubs in your editor declare a Solution class and a main method. Complete the main method by …

12 import java.io.*; import java.util.*; import java.text.*; import java.math.*;

Most HackerRank challenges require you to read input from stdin (standard input) and write output to stdout (standard output). One popular way to read input from stdin is by using the …

Join over 28 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews.

Java's System.out.printf function can be used to print formatted output. The purpose of this exercise is to test your understanding of formatting output using printf.

16 17 import java.io.*; import java.util.*; public class Solution { public static void main(String[] args) { Scanner sc=new Scanner(System.in);

Sometimes it's better to use dynamic size arrays. Java's Arraylist can provide you this feature.