Java实验报告布局管理器对组件进行管理

1、java程序设计实验报告学号班级姓名指导教师实验题目实验十六、图形用户界面51、实验目的1. 熟悉主要的布局方式；2. 学会使用布局管理器对组件进行管理。2、实验内容1.按以下图示设计布局2.圄1 = i回31label!label2showstrexit3.3、程序清单：(粘贴源程序代码)1.import java.awt.color;import java.awtcontainer;import java.awt.gridlayout;import javax.swing.jbutton;import javax.swing.dframe;import javax>swing.jpa

2、nel;import javax.swing.jtextarea;public class shiliu1 container con;dframe frame;shiliu1()frame=new 3frame();con二framegetcontentpane();consetlayout(new gridlayout(2,»3); con.add(new 3ia();conadd(new d();frame.pack();framesetvisible(true);public static void main(string args) new shiliu1o;class j

3、ia extends dpa3textarea f;3panel pan;3ia()pan=new jpanel();pansetlayout(new gridlayout(4,1); f=new 3textarea();f <se tbackground (color, pin/?); setlayout(new gridlayout2,»3);string a=”加”减”乘”除“; int i;for(i=0;i<4;i+)pan.add(new dbutton(ai);add(f);add(pan);class d extends 3paneld()string a

4、=,0,/,l,/,2,?"5"“6“ysetlayout(new gridlayout(4?3); int i;for(i=0;i<12;i+) add(new 3button(ai);2.import java.awt.borderlayout;import java.awt.button;import java.awt.label;import javax.swing.dframe;import javax.swing>3textarea;public class shiliu2 extends 3frameshiliu2()setlayout(new b

5、orderlayout();add(new label("labell")borderlayout.north); add(new button("exit"), borderlayout.south);add(new label("label2")? borderlayout.west); add(new button("show str")， borderlayout.east); add(new jtextareao borderlayout.ce/vter); setsize(300,200);setvis

6、ible(true);public static void main(string args) new shiliu2();3import java.awtborderlayout;import java.awt.cardlayout;import java.awt.container;import java.awt.gridlayout;import javaawtevent.actionevent;import javaawteventactionlistener;import javax.swing.dbutton;import javax.swing.dframe;import jav

7、ax.swing.jpanel;public class shiliu3 implements actionlistener container con;dframe frame;3panel pan,panl;button butl,but2,but3;cardlayout c;shiliu3()c二new cardlayout();frame=new 3frame();con=framegetcontentpane();pan=new jpanel();panl=new 3panel();butl=new jbutton("流式布局”)；but2=new jbutton(&quo

8、t;边界布局”)； but3=new jbutton("网格布局”)； butl.addacti on liste ner(t:his);but2.addactionlistener(this); but3>addactionlistener(this); panl>add(butl);panl.add(but2);panl.add(but3);pansetlayout(c);pan.add(new a(),"1");pan.add(new b()/'2");pan.add(new c()/'3");consetla

9、yout(new borderlayout(3j3);conadd(pan，borderlayoutcenter); con add (panl，border layout sol/th); frame>pack();frame>setvisible(true);public void actionperformed(actionevent e) if(e.getsource()=butl)cshow(pan，t);if(e>getsource()=but2)c.show(pan, n2h);if(e.getsource()=but3) c.show(pan> ,3h)

10、;public static void main(string args) new shiliu3();class a extends 3panela()int i;for(i=0;i<5;i+)add(new jbutton("按钮"+i);class b extends 3panelb()setlayout(new borderlayout(3,3);add(new 3button("按钮 0"), borderlayout.north); add(new jbutton("按钮 4"),borderlayout.south); add(new 3button("按钮 1"),borderlayout.ives?); add(new jbutton("按钮 2" ), border layout. east);add(new jbutton("按钮 3"), borderlayout.center); class c extends 3panelc()int i;setlayout(new gridlayout(3,3,3,3);for(i=