Question

How to create generic (template) class in Java

Answer 1

class Test<T> {
  T a, b;
   
  void setValue(T _a, T _b) {
    this.a = _a;
    this.b = _b;
  }
  Test getValue() {
    return this;
  }
}
 
public class MyClass {
    public static void main(String args[]) {
        Test<Integer> t1 = new Test<Integer>();
        t1.setValue(13, 89);
        System.out.println(t1.a + " " + t1.b);
        
        Test<String> t2 = new Test<String>();
        t2.setValue("java", "c++");
        System.out.println(t2.a + " " + t2.b);
    }
}
 
 
 
 
/*
run:
 
13 89
java c++
 
*/

 

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