package Exp10; public class String_Builder_Buffer { public static void main(String[] args) { String s="hiii"; StringBuilder s1=new StringBuilder("hii"); StringBuffer s2=new StringBuffer("hii"); s.concat("Hello"); s1.append(" guys"); s2.append(" guys"); System.out.println("String Demo: "+s); System.out.println("StringBuilder Demo: "+s1); System.out.println("StringBuffer Demo:"+s2); } }