package lkp;
class Graph{
private float length;
private float width;
private String backcolor;
public void size(){
System.out.println("设置图片的尺寸");
}
public void color(){
System.out.println("设置图片的背景颜色");
}
}
public class Test{
public static void main(String args []){
Graph graph = new Graph();
graph.size();
graph.color();
}
}