How to Convert String to char Array in Java

In java we have built-in function String.toCharArray() to convert String to char array. But for sure in the interviews they will ask you to write a program to convert string to char array without using the built-in functions 🙂…

How to Convert String to int in Java

In Java we can convert string to integer with Integer.parseInt() function. Java String to int Example public class StringtoInt { public static void main(String args) { String str = “4”; int in = Integer.parseInt(str); System.out.println(in); } } Output: 4…

How to Convert List to Map in Java 8

If you have a scenario where you need to convert List of objects to a Map, prior to java 8 you can do this by writing a simple for loop which is iterative. But in this article I will…