Java Learning--overloading of methods

* Overloading of methods (overload)
* Requirements: 1. In the same class 2. The method name must be the same 3. The parameter list of the method is different (the number of ① parameters differs ② parameter type)
* Supplement: The overloads of the method have no relation to the return value type of the method!

 Public classTestoverload {}classoverload{//defines the and of two variables of type int     Public intGetsum (intIintj) {        returni +J; }    //defines the and of three variables of type int     Public intGetsum (intIintJintk) {        returni + j +K; }    //cannot be overloaded with several other methods//public int getSum1 (int i,int j,int k) {//return i + j + K;//    }//Public void getsum (int i,int j,int k) {//System.out.println (i + j + k);//    }    //defines the and of two double type data     Public DoubleGetsum (DoubleD1,DoubleD2) {        returnD1 +D2; }        //defines the and of three array of type double     Public voidGetsum (DoubleD1,DoubleD2,DoubleD3) {System.out.println (D1+ D2 +D3); }    //the following two methods form an overload.      Public voidMETHOD1 (inti,string str) {            }     Public voidMethod1 (String str1,intj) {            }} 

Java Learning--overloading of methods