Use a generic constructor. : Generic Constructor « Generics « Java

1. Java
2. Generics
3. Generic Constructor

Use a generic constructor.

class GenCons {
  private double val;

  <T extends Number> GenCons(T arg) {
    val = arg.doubleValue();
  }

  void showval() {
    System.out.println("val: " + val);
  }
}

public class GenConsDemo {
  public static void main(String args[]) {

    GenCons test = new GenCons(100);
    GenCons test2 = new GenCons(123.5F);

    test.showval();
    test2.showval();
  }
}


           
       

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