java上机3参考代码.doc

java上机3参考代码
上机实践3 组件及事件处理实验1 算术测试
模板代码

public class Teacher
{ int numberOne,numberTwo;
String operator="";
boolean right;
public int giveNumberOne(int n)
{ numberOne=(int)(()*n)+1; return numberOne;
}
public int giveNumberTwo(int n)
{ numberTwo=(int)(()*n)+1; return numberTwo;
}
public String giveOperator()
{ double d=();
if(d>=)
operator="+";
else
operator="-";
return operator;
}
public boolean getRight(int answer)
{ if(("+"))
{ if(answer==numberOne+numberTwo) right=true;
else
right=false;
}
else if(("-"))
{ if(answer==numberOne-numberTwo) right=true;
else
right=false;
}
return right;
}
}

import .*;
import .*;
public puterFrame extends Frame implements ActionListener
{ TextField textOne,textTwo,textResult;
Button getProblem,giveAnwser;
Label operatorLabel,message;
Teacher teacher;
ComputerFrame(String s)
{ super(s);
teacher=new Teacher();
setLayout(new FlowLayout());
textOne=new TextField(10); //创建textOne,其可见字符长是10
textTwo= new TextField(10); //创建textTwo,其可见字符长是10
textResult= new TextField(10); //创建textResult,其可见字符长是10
operatorLabel=new Label("+");
message=new Label("你还没有回答呢");
getProblem=new Button("获取题目");
giveAnwser=new Button("确认答案");
add(getProblem);
add(textOne);
add(operatorLabel);
add(textTwo);
add(new Label("="));
add(textResult);
add(giveAnwser);
add(message);
();
(false);
(false);
(this);//将当前窗口注册为getProblem的ActionEvent事件监视器 (this);//将当前窗口注册为giveAnwser的ActionEvent事件监视器 (this);//将当前窗口注册为textResult的ActionEvent事件监视器 setBounds(100,100,450,100);
setVisible(true);
validate();
addWindowListener(new WindowAdapter()
{ public void windowClosing(WindowEvent e)
{