モデル編集

 1 class Info<T>
 2 {
 3     private T var;
 4 
 5     public T getVar() {
 6         return var;
 7     }
 8 
 9     public void setVar(T var) {
10         this.var = var;
11     }
12 
13     @Override
14     public String toString() {
15         return "Info [var=" + var + "]";
16     }
17     
18 }
19 
20     static void fun(Info<?> in)
21     {
22         System.out.println(in.hashCode());
23     }
24     public  static void main(String[] args)
25     {
26         Info<String> info=new Info<String>();
27         info.setVar("wfasf");
28         fun(info);
29         }
30     

        Info<Integer> i1=new Info<>();
        Info<String> i2=new Info<>();
        Info<Integer> i3=new Info<>();
        i1.setVar(20);
        i2.setVar("sfdsdf");
        combine(i1,i3);



    private static<T >  void combine(Info<T> i1, Info<T> i12) {　　　　　　　　　　
        System.out.println(i1.getVar()+" "+i12.getVar());
    }

    
        Integer[] b=fun1(1,2,4,5,3);

private static<T> T[] fun1(T... b) {
        return b;
    }