Well-off accompany you to learn Java--------overload

The overload of a method is to allow more than one method of the same name to exist in the same class, as long as they have a different number of arguments or types. In this case, the method is called overloaded, and this process is called the overloading of the method.

Example: Testjava4_11.java

01//The following procedure describes the overloaded operation of the method

public class Testjava4_11

03 {

public static void Main (string[] args)

05 {

Int_sum int;

-Double double_sum;

Int_sum = Add (3,5); Call the Add method with two parameters

The value of System.out.println ("Int_sum = Add (3,5) is:" +int_sum);

Ten int_sum = Add (3,5,6); Call the Add method with three parameters

One System.out.println (the value of "Int_sum = Add (3,5,6) is:" +int_sum);

Double_sum = Add (3.2,6.5); The value passed in is Doule type

The value of System.out.println ("Double_sum = Add (3.2,6.5) is:" +double_sum);

14}

public static int Add (int x,int y)

16 {

X+y return;

18}

public static int Add (int x,int y,int z)

20 {

return x+y+z;

22}

All public static double add (double x,double y)

24 {

return x+y;

26}

27}

Output Result:

The value of Int_sum = Add (3,5) is: 8

The value of Int_sum = Add (3,5,6) is: 14

The value of Double_sum = Add (3.2,6.5) is: 9.7

It can be found that the add is overloaded three times, but each overloaded method can accept the number of parameters and the type of different, I believe the reader should now be able to understand the concept of method overloading.

Well-off accompany you to learn Java--------overload