String equals

package com.bahasaJava.equals;

public class Test_Equals {

    public static void main(String args[]){

           String string1 = "belajar";
           String string2 = "belajar";
           String string3 = new String("belajar");
           String string4 = "Belajar";

           System.out.println(string1.equals(string2));//true
           System.out.println(string1.equals(string3));//true
           System.out.println(string1.equals(string4));//false
         }

}