Java语言程序设计试题及答案第六章图形界面设计6.1设计一个面板，该面板中有四个运动项目选择框和一个文本区。当某个选择项目被选中时，在文本区中显示该选择项目。程序运行结果:源文件：Work6_1.javaimportjavax.swing.*;importjava.awt.*;importjava.awt.event.*;/***@author段智敏*/publicclassWork6_1extendsJFrame{privatestaticfinallongserialVersionUID=1L;privateMyPanel6_1panel;//此面板publicWork6_1(){panel=newMyPanel6_1();this.add(panel);this.setBounds(1,1,4,150);this.setVisible(true);this.validate();this.addWindowListener(newWindowAdapter(){publicvoidwindowClosing(WindowEvente){System.exit(0);)});)publicstaticvoidmain(Stringargs[]){newWork6_1();))面板类源文件：MyPanel6_1.java/***需要设计的面板类*/classMyPanel6_1extendsJPanelimplementsItemListener{privateprivateprivatestaticfinallongJCheckBoxJTextAreaserialVersionUID=1L;public{MyPanel6_1()textAreabox1box2box3box4box1box2box3box4thisthisthisthisthisnewnewnewnewJCheckBox(JCheckBox(JCheckBox(JCheckBox(=new.addItemListener(.addItemListener(.addItemListener(.addItemListener(.add(.add(.add(.add(.add(box1box2box3box4）；）；）；）;JTextArea(5,10);"足球");"排球")；"篮球");"台球")；);)；)；);thisthisthisthistextArea);box1,box2,box3,box4;textArea;cyan);this.setBackground(Color.publicvoiditemStateChanged(ItemEvente){JCheckBoxbox=(JCheckBox)e.getSource();if(box==box1&&box.isSelected())textArea.append(box1.getText()+"\n");elseif(box==box2&&box.isSelected())textArea.append(box2.getText()+"\n");elseif(box==box3&&box.isSelected())textArea.append(box3.getText()+"\n");elseif(box==box4&&box.isSelected())textArea.append(box4.getText()+"\n");))6.2设计一个面板，该面板中有四个运动项目单选框和一个文本框。当某个选择项目被选中时，在文本框中显示该选择项目。程序运行结果:源文件：Work6_2.javaimportjavax.swing.*;importjava.awt.event.*;/****@author段智敏*/publicclassWork6_2extendsJFrame{privatestaticfinallongserialVersionUID=1L;privateMyPanel6_2panel;publicWork6_2(){super("第六章，第二题");panel=newMyPanel6_2();this.add(panel);this.setBounds(1,1,4,150);this.setVisible(true);this.validate();this.addWindowListener(newWindowAdapt