用java来编写一个程序,在构造方法中显示消息"包裹重5千克",然后分别以千克和克来显示重量,输出最后的结果

class TestWeight{
public TestWeight(int n){
iWeight=n;
System.out.println("包裹重" + iWeight +"千克");
}

public void getKG(){
System.out.println("包裹重" + iWeight +"千克");
}

public void getG(){
System.out.println("包裹重" + iWeight * 1000 +"克");
}
private int iWeight;

public static void main(String[] args){

TestWeight t=new TestWeight(5);
t.getKG();
t.getG();

}
}