weight.java

项目实战

public class weight{
	double k;
	weight(double k){
		this.k=k;
	}
	void print(){
		System.out.println("包裹重5千克");
		System.out.println("将以千克显示重量");
		System.out.println("以千克为单位的重量:"+(k/1000));
		System.out.println("将以克显示重量");
		System.out.println("以克为单位的重量:"+(int)k);
	}
	public static void main(String[] args){
		weight a=new weight(5006);
		a.print();
	}
}