import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
public class Login {
private JFrame frame = new JFrame("四则运算");
private Container c = frame.getContentPane();
private JTextField username = new JTextField();
private JPasswordField password = new JPasswordField();
private JButton ok = new JButton("确定");
private JButton cancel = new JButton("取消");
public Login(){ frame.setSize(300,200);
c.setLayout(new BorderLayout());
initFrame();
frame.setVisible(true);
}
private void initFrame()
{ //顶部
ok.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent arg0) {
new suanfa();
}
});
JPanel titlePanel = new JPanel();
titlePanel.setLayout(new FlowLayout());
titlePanel.add(new JLabel("学生登录"));
c.add(titlePanel,"North");
//中部表单
JPanel fieldPanel = new JPanel();
fieldPanel.setLayout(null);
JLabel l1 = new JLabel("学 号:");
l1.setBounds(50, 20, 50, 20);
JLabel l2 = new JLabel("密 码:");
l2.setBounds(50, 60, 50, 20);
fieldPanel.add(l1);
fieldPanel.add(l2);
username.setBounds(110,20,120,20);
password.setBounds(110,60,120,20);
fieldPanel.add(username);
fieldPanel.add(password);
c.add(fieldPanel,"Center"); //底部按钮
JPanel buttonPanel = new JPanel();
buttonPanel.setLayout(new FlowLayout());
buttonPanel.add(ok);
buttonPanel.add(cancel);
c.add(buttonPanel,"South"); }
public static void main(String[] args){ new Login(); }
}
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
public class yunsuan extends JFrame{
JLabel l1 = new JLabel("答对题数:");
private JFrame frame = new JFrame("四则运算");
private Container c = frame.getContentPane();
private JButton KO = new JButton("确定");
private JTextField A = new JTextField(6);
private JTextField AA = new JTextField(4);
private JTextField AAA = new JTextField(4);
private JTextField B = new JTextField(6);
private JTextField BB = new JTextField(4);
private JTextField BBB = new JTextField(4);
private JTextField C = new JTextField(6);
private JTextField CC = new JTextField(4);
private JTextField CCC = new JTextField(4);
private JTextField D = new JTextField(6);
private JTextField DD = new JTextField(4);
private JTextField DDD = new JTextField(4);
private JTextField E = new JTextField(6);
private JTextField EE = new JTextField(4);
private JTextField EEE = new JTextField(4);
private JPasswordField password = new JPasswordField();
private JButton ok = new JButton("确定");
private JTextField QQ = new JTextField(6);
int num=0;
int an[]=new int [5];
String bn[]=new String [5];
String cn[]=new String [5];
yunsuan(int a[],String b[])
{
an=a;
bn=b;
JPanel fieldPanel = new JPanel();
fieldPanel.add(A);A.setBounds(30, 10, 100, 20);
A.setVisible(true);
fieldPanel.add(AA);AA.setBounds(40, 10, 100, 20);
fieldPanel.add(AAA);AAA.setBounds(50, 10, 100, 20);
fieldPanel.add(B);B.setBounds(30, 15, 50, 20);
fieldPanel.add(BB);BB.setBounds(40, 15, 100, 20);
fieldPanel.add(BBB);BBB.setBounds(50, 10, 100, 20);
fieldPanel.add(C);C.setBounds(30, 20, 50, 20);
fieldPanel.add(CC);CC.setBounds(40, 20, 100, 20);
fieldPanel.add(CCC);CCC.setBounds(50, 10, 100, 20);
fieldPanel.add(D);D.setBounds(30, 25, 50, 20);
fieldPanel.add(DD);DD.setBounds(40, 25, 100, 20);
fieldPanel.add(DDD);DDD.setBounds(50, 10, 100, 20);
fieldPanel.add(E);E.setBounds(30, 30, 50, 20);
fieldPanel.add(EE);EE.setBounds(40, 30, 100, 20);
fieldPanel.add(EEE);EEE.setBounds(50, 10, 100, 20);
fieldPanel.add(KO);KO.setBounds(30, 50, 20, 20);
fieldPanel.add(l1);l1.setBounds(20, 60, 100, 20);
fieldPanel.add(QQ);QQ.setBounds(40, 70, 100, 20);
KO.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent arg0) {
cn[0]=AA.getText();
cn[1]=BB.getText();
cn[2]=CC.getText();
cn[3]=DD.getText();
cn[4]=EE.getText();
AAA.setText(String.valueOf(an[0]));
BBB.setText(String.valueOf(an[1]));
CCC.setText(String.valueOf(an[2]));
DDD.setText(String.valueOf(an[3]));
EEE.setText(String.valueOf(an[4]));
for(int i=0;i<an.length;i++)
if(String.valueOf(an[i]).equals(cn[i]))num++;
QQ.setText(String.valueOf(num));
}
});
fieldPanel.setVerifyInputWhenFocusTarget(true);
A.setText(bn[0]);
B.setText(bn[1]);
C.setText(bn[2]);
D.setText(bn[3]);
E.setText(bn[4]);
this.add(fieldPanel);
this.setBounds(400, 400, 250, 270);
this.setVisible(true);
}
}
import java.util.Random;
public class suanfa {
int a,b,c,d;
int an[]=new int [5];
String bn[]=new String [5];
Random cn =new Random();
suanfa(){
int i=0;
do{
a=cn.nextInt(100);
b=cn.nextInt(100);
d=cn.nextInt(100)%4+1;
switch(d){
case 1:
an[i]=a+b;
bn[i]=String.valueOf(a)+"+"+String.valueOf(b)+"=";
i++;
break;
case 2:
an[i]=a-b;
bn[i]=String.valueOf(a)+"-"+String.valueOf(b)+"=";
i++;break;
case 3:an[i]=a*b;
bn[i]=String.valueOf(a)+"*"+String.valueOf(b)+"=";
i++;
break;
case 4:an[i]=a/b;
bn[i]=String.valueOf(a)+"/"+String.valueOf(b)+"=";
i++;break;
}
}while(i<5);
for(int j=0;j<bn.length;j++)
{System.out.println(bn[j]);System.out.println(an[j]);
}
new yunsuan(an,bn);
}
}
