nulllayoutexample.java

Java课程中所有的可运行程序 全部都是java课程中所涉及到的源码

import java.applet.*;
import java.awt.*;
 public class nullLayoutExample extends Applet{

public void init()
{ this.setLayout(null);

Label l3=new Label("系统登录界面");
l3.setBounds(new Rectangle(108,2,98,37));
	add(l3);


    Label l1=new Label("用户名:");
l1.setBounds(new Rectangle(45,58,67,34));
	add(l1);

	TextField txt1=new TextField(8);
	txt1.setBounds(new Rectangle(115,59,180,33));
	add(txt1);

	Label l2=new Label("密码 :");
	l2.setBounds(new Rectangle(43,106,66,26));
	add(l2);


	TextField txt2=new TextField(8);
	txt2.setEchoChar('*');
	txt2.setBounds(new Rectangle(115,104,180,33));
		add(txt2);

 TextArea txt3=new TextArea();
txt3.setText("这里一个登录界面......"+"\n");
txt3.setRows(5);
txt3.setColumns(18);
txt3.append("这里一个登录界面......"+"\n");
txt3.insert("这里一个登录界面......"+"\n",2);
txt3.setEditable(false);
txt3.setBounds(new Rectangle(300,38,160,200));
		add(txt3);




	Button b1=new Button("登录");
	b1.setBounds(new Rectangle(78,220,86,30));
		add(b1);

	Button b2=new Button("取消");
	b2.setBounds(new Rectangle(193,220,86,30));
	add(b2);

}
 }