What is difference between String equals() , == and intern() methods

 

  Here we have some differences between equals() and ==

  1. equals() is a method  and ==  is operator for comparison 

     of two string objects.

  2. == checks if both objects point to the same memory location whereas .equals() evaluates the comparison of values in the objects.

  3. intern()  method points the equal object to the same memory reference in the string pool.

public class StringInturn {

       public static void inturnTest() {

   

 String  s1="Mukesh";

         String  s2=new String("Mukesh");

          String  s3="Vidhata";

           String   s7=s2.intern();

   String  s="Mukesh";

       

            System.out.println( s1==s);

           System.out.println("s1==S2" +s1==s2);

       

   System.out.println("s1.equal(s2):" +s1.equals(s2));

             System.out.println("s1.equals(s3):"+s1.equals(s3));

       

             

    System.out.println("s1==s7:" +(s1==s7));

            

   //Here s7of s2 points same  object in the spring pool 

     as s1  so  it s1==S7return true  

  }

   

    public static void main(String [] args) {

   

  inturnTest();

  }

}

Programm  output 

false

false

s1.equal(s2):true

s1.equals(s3):false

s1==s7:true