Java is a High Level Programming language used for developing applets, android applications, used in ATM machines, etc. Java gives us various types of Libraries which makes easier to use it. There are many version of java are availiable like jdk 7, jdk 8, etc. Simple Programming import java.util.*; class java { public static void main() { int a,b,c; a=20; b=30; c=a+b; System.out.println(c); } } Output 50