JavaCopyandRefTest

//A test having to do with object ref and copy constructors in java
public class OBJRefTesting {

    /**
     * @param args
     */
    public static void main(String[] args)
    {
        simplevalue sv = new simplevalue(1);
        simplevalue sv2 = sv;
        simplevalue sv3 = new simplevalue(sv.getI());

        System.out.println("Value1: " + sv + " Value2: " + sv2 + " Value3: " +sv3);

        sv.setI(10);

        System.out.println("Value1: " + sv + " Value2: " + sv2 + " Value3: " +sv3);

        sv2.setI(15);

        System.out.println("Value1: " + sv + " Value2: " + sv2 + " Value3: " +sv3);

        sv3.setI(30);

        System.out.println("Value1: " + sv + " Value2: " + sv2 + " Value3: " +sv3);

        simplevalue sv4 = new simplevalue(1);
        simplevalueL2 svl = new simplevalueL2(1,1.0);

        simplevalue sv5 = new simplevalue(sv4);
        simplevalueL2 svl2 = new simplevalueL2(svl);

        System.out.println("Main Value1: " + sv4 + " Main Value2: " + svl + " Copy Value1: " + sv5 + " Copy Value2: " + svl2);

        sv4.setI(2);
        svl.setD(2.0);
        svl.setI(2);
        System.out.println("Main Value1: " + sv4 + " Main Value2: " + svl + " Copy Value1: " + sv5 + " Copy Value2: " + svl2);


    }

}
class simplevalue
{
    private int i;

    public simplevalue()
    {
        i = 0;
    }

    public simplevalue(int i)
    {
        this.setI(i);
    }

    public simplevalue(simplevalue sv)
    {
        setI(sv.getI());
    }

    public int getI() {
        return i;
    }

    public void setI(int i) {
        this.i = i;
    }

    public String toString(){return "" + i;}

}
class simplevalueL2 extends simplevalue
{
    private double d;
    public simplevalueL2()
    {
        super();
        d = 0;
    }
    public simplevalueL2(int i, double d)
    {
        super(i);
        this.setD(d);
    }

    public simplevalueL2(simplevalueL2 sv2)
    {
        super(sv2);
        this.setD(sv2.getD());
    }

    public double getD() {
        return d;
    }
    public void setD(double d) {
        this.d = d;
    }

    public String toString(){return super.toString() + ", " + d;}
}