java实验报告 图形用户界面设计 GUI

实验报告课程java程序设计实验项目图形用户界面成绩专业班级班内序号指导教师姓名学号实验日期2010-1-4实验目的：1、熟悉GUI设计步骤2、掌握GUI各个组件的用法实验要求：1.使用BorderLayout将JFrame布局分为左右两块；左边使用GridLayout，半酣3个按钮；；右边JLabel里显示一幅幅画，按钮空JLabel是否显示滚动条。源代码如下：importjavax.swing.*;importjava.awt.*;publicclassframeTest{publicstaticvoidmain(Stringargs[]){CFrameframe=newCFrame("FrameTest");Containerpane=frame.getContentPane();pane.add(newleftPanel(),BorderLayout.WEST);pane.add(newrightPanel(),BorderLayout.EAST);frame.pack();frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);frame.setVisible(true);}}classCFrameextendsJFrame{publicCFrame(Stringtitle){setTitle(title);setBackground(Color.BLUE);}}classleftPanelextendsJPanel{publicleftPanel(){JButtonbt1=newJButton("view");JButtonbt2=newJButton("clear");JButtonbt3=newJButton("noidea");setLayout(newGridLayout(2,2,100,100));add(bt1);add(bt2);add(bt3);bt1.addActionListener(this);bt2.addActionListener(this);bt3.addActionListener(this);}}classrightPanelextendsJPanel{publicrightPanel(){JLabellabel=newJLabel(newImageIcon("image.jpg"));label.setToolTipText("西瓜帽");JScrollPanescr=newJScrollPane(label,ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS,ScrollPaneConstants.HORIZONTAL_SCROLLBAR_ALWAYS);add(label);add(scr);}}运行结果如图所示2.练习使用对话框。包括一个JLabel和两个JButton，按任何一个JButton都会产生一个输入对话框，按确定后将输入内容在JLabel中显示出来源代码如下：importjavax.swing.*;importjava.awt.*;importjava.awt.event.*;publicclassdTest{publicstaticvoidmain(Stringargs[]){Formform=newForm();form.setSize(300,200);form.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);form.setVisible(true);}}classFormextendsJFrameimplementsActionListener{privateDialdia;JLabellab=newJLabel("请输入");publicForm(){JButtonbtn1=newJButton("Yes");JButtonbtn2=newJButton("No");getContentPane().setLayout(newGridLayout(3,1));add(lab);add(btn1);add(btn2);setTitle("inputprac");btn1.addActionListener(this);btn2.addActionListener(this);}publicvoidactionPerformed(ActionEventevent){if(event.getActionCommand()=="输入"){dia=newDial(this,"请输入内容",true);dia.setVisible(true);lab.setText(dia.getSt());}else{System.exit(0);}}}classDialextendsJDialogimplementsActionListener{privateJTextFieldtext=newJTextField("change");privateJButtonbtn1=newJButton("确定");privateJPanelpanel=newJPanel();publicDial(JFrameframe,Stringtitle,booleanb){super(frame,title,b);getContentPane().setLayout(newFlowLayout());panel.add(text);panel.add(btn1);btn1.addActionListener(this);getContentPane().add(panel);pack();}publicvoidactionPerformed(ActionEventevent){this.dispose();}publicStringgetSt(){returntext.getText();}}运行结果如图所示3.联系使用JTable。包括姓名、学号、语文成绩、数学成绩、总分共5项源代码如下：importjava.awt.*;importjavax.swing.*;publicclasstable{publicstaticvoidmain(Stringargs[]){JFrameform=newJFrame("Table试验");finalObject[]row={"姓名","学号","语文成绩","数学成绩","总分"};Object[][]rowData={{"张三","01","81","80","160"},{"李四","02","93","72","165"},{"王麻子","03","99","97","196"},};JTabletb=newJTable(rowData,row);JScrollPanepane=newJScrollPane(tb);form.getContentPane().add(tb);form.setVisible(true);form.pack();}}运行结果如图所示4.编写Application程序，构造一个GUI，实现对两个数的加、减、乘、除功能。应含有3个JTextField和1个JButton源代码如下：importjava.awt.*;importjavax.swing.*;importjava.awt.event.*;classFormextendsJFrameimplementsActionListener{JTextFielda=newJTextField(6);JTextFieldb=newJTextField(6);JTextFieldc=newJTextField("+",1);JButtonbtn=newJButton("计算");JLabellab=newJLabel("=");publicForm(){Containerct=getContentPane();ct.add(a);ct.add(c);ct.add(b);ct.add(lab);ct.add(btn);ct.setLayout(newFlowLayout());btn.addActionListener(this);pack();setVisible(true);}publicvoidactionPerformed(ActionEventevent){intm=Integer.parseInt(a.getText());intn=Integer.parseInt(b.getText());Stringf=c.getText().trim();if(f=="+"){intr=m+n;lab.setText("="+r);}elseif(f=="-"){intr=m-n;lab.setText("="+r);}elseif(f=="*"||f=="×"){intr=m*n;lab.setText("="+r);}elseif(f=="/"||f=="÷"){intr=m/n;lab.setText("="+r);