展示多个窗口
package day14; import java.awt.*; public class AwtDemo2 { public static void main(String[] args) { Myframe myframe1 = new Myframe(200, 300, 200, 200, Color.yellow); Myframe myframe2 = new Myframe(400, 300, 200, 200, Color.gray); Myframe myframe3 = new Myframe(600, 300, 200, 200, Color.red); } } class Myframe extends Frame { static int id = 0;//可能有多个窗口,需要计数器 public Myframe(int x, int y, int w, int h, Color color) { super("Myframe+" + (++id)); setBackground(color); setBounds(x, y, w, h); setVisible(true); } }
执行结果: