Java - Method Overloading Concept

class methover
 {
   void sum(int a, int b)
     {
        System.out.println("integer value : "+(a+b));
     }

    void sum(double a, double b)
    {
       System.out.println("double value : "+(a+b));
    }

   void sum(float a, float b)
    {
      System.out.println("float value : "+(a+b));
    }

   void sum(byte a, byte b)
    {
      System.out.println("byte value : "+(a+b));
    }

   void sum(short a, short b)
    {
      System.out.println("short value : "+(a+b));
    }

    void sum(long a, long b)
    {
       System.out.println("long value : "+(a+b));
    }

   void sum(String a, String b)
    {
       System.out.println("string value : "+(a+b));
    }

  public static void main(String arg[])
     {
       methover t = new methover();
       t.sum(5,10);
       t.sum(10.3,14.2);
       t.sum(5.3,3.2);
       t.sum(100,-50);
       t.sum(10000,-20000);
       t.sum(250,200);
       t.sum("ssv","ksv");
     }
  }