mycalculation.java

learning java的源代码。书中每个实例都有相关的代码example。

//file: MyCalculation.java
public class MyCalculation extends WorkRequest {
    int n;

    public MyCalculation( int n ) {
        this.n = n;
    }
    public Object execute(  ) {
        return new Integer( n * n );
    }
}