C-language-test-management-system.zip_clanguagetest

package practice; import java.awt.*; import java.awt.event.*; public class Test extends Frame implements ActionListener{ Label title; Label problem1; CheckboxGroup pro_A; Checkbox pro_A1,pro_A2,pro_A3,pro_A4; Label problem2; CheckboxGroup pro_B; Checkbox pro_B1,pro_B2,pro_B3,pro_B4; Label problem3; CheckboxGroup pro_C; Checkbox pro_C1,pro_C2,pro_C3,pro_C4; Label problem4; CheckboxGroup pro_D; Checkbox pro_D1,pro_D2,pro_D3,pro_D4; Label problem5; CheckboxGroup pro_E; Checkbox pro_E1,pro_E2,pro_E3,pro_E4; Button btn; Label result; Panel pan0,pan1,pan2,pan3,pan4,pan5,pan6; public Test(){ super("自测"); title=new Label("小测试"); problem1=new Label("1.C语言的基本单位是什么？"); pro_A=new CheckboxGroup(); pro_A1=new Checkbox("函数",false,pro_A); pro_A2=new Checkbox("关键字",false,pro_A); pro_A3=new Checkbox("分隔符",false,pro_A); pro_A4=new Checkbox("数据项",false,pro_A); problem2=new Label("以下正确的函数声明形式是？"); pro_B=new CheckboxGroup(); pro_B1=new Checkbox("double fun(int x,int y);",false,pro_B); pro_B2=new Checkbox("double fun(int x;int y)",false,pro_B); pro_B3=new Checkbox("double fun(int x,int y)",false,pro_B); pro_B4=new Checkbox("double fun(int x,y);",false,pro_B); problem3=new Label("3.双精度浮点型的关键字是？"); pro_C=new CheckboxGroup(); pro_C1=new Checkbox("int",false,pro_C); pro_C2=new Checkbox("double",false,pro_C); pro_C3=new Checkbox("float",false,pro_C); pro_C4=new Checkbox("long int",false,pro_C); problem4=new Label("4.逻辑运算符与的符号是？"); pro_D=new CheckboxGroup(); pro_D1=new Checkbox("$$",false,pro_D); pro_D2=new Checkbox("!",false,pro_D); pro_D3=new Checkbox("||",false,pro_D); pro_D4=new Checkbox("&&",false,pro_D); problem5=new Label("5.下列那个是合法的用户标识符？"); pro_E=new CheckboxGroup(); pro_E1=new Checkbox("break",false,pro_E); pro_E2=new Checkbox("int",false,pro_E); pro_E3=new Checkbox("count",false,pro_E); pro_E4=new Checkbox("case",false,pro_E); btn=new Button("提交"); btn.addActionListener(this); result=new Label(""); pan0=new Panel(); pan1=new Panel(); pan2=new Panel(); pan3=new Panel(); pan4=new Panel(); pan5=new Panel(); pan6=new Panel(); pan0.add(title); pan1.setLayout(new GridLayout(1,4)); pan1.add(pro_A1); pan1.add(pro_A2); pan1.add(pro_A3); pan1.add(pro_A4); pan2.setLayout(new GridLayout(1,4)); pan2.add(pro_B1); pan2.add(pro_B2); pan2.add(pro_B3); pan2.add(pro_B4); pan3.setLayout(new GridLayout(1,4)); pan3.add(pro_C1); pan3.add(pro_C2); pan3.add(pro_C3); pan3.add(pro_C4); pan4.setLayout(new GridLayout(1,4)); pan4.add(pro_D1); pan4.add(pro_D2); pan4.add(pro_D3); pan4.add(pro_D4); pan5.setLayout(new GridLayout(1,4)); pan5.add(pro_E1); pan5.add(pro_E2); pan5.add(pro_E3); pan5.add(pro_E4); pan6.add(btn); this.setLayout(new GridLayout(13,1)); this.add(pan0); this.add(problem1); this.add(pan1); this.add(problem2); this.add(pan2); this.add(problem3); this.add(pan3); this.add(problem4); this.add(pan4); this.add(problem5); this.add(pan5); this.add(pan6); this.add(result); this.addWindowListener(new WinDispose()); this.setSize(550,450); this.setVisible(true); } public void actionPerformed(ActionEvent e){ StringBuffer rs; if(e.getActionCommand()=="提交"){ rs=new StringBuffer(""); if(!pro_A1.getState()){ rs.append("1 "); } if(!pro_B3.getState()){ rs.append("2 "); } if(!pro_C2.getState()){ rs.append("3 "); } if(!pro_D4.getState()){ rs.append("4 "); } if(!pro_E3.getState()){ rs.append("5 "); } if(rs.toString().equals("")){ rs.append("了不起，全部正确"); }else{ rs.append("题错误请再接再厉"); } btn.setLabel("重做"); result.setText(rs.toString()); }else if(e.getActionCommand()=="重做"){ btn.setLabel("提交"); result.setText(""); } } }