String Function using Java in NetBeans

public class p34_stringfunctions {
    public static void main(String args[]){
        String a="Tushar";
        String b="Raj";
        System.out.println("Length of A:"+ a.length());
        System.out.println("A and B:"+ a.concat(b));
        System.out.println(a.equals(b));            
    }
}