Java从文本运用输入输出流从文档中读取数据后做成界面选择题判断正误

小咪咪 2022-05-24 00:25 80阅读 0赞

学习输入输出流后做了一个小程序

读取数据后做成一个GUI选择题判断正误

最后一直在改结束按钮，最后的最后也没有改出很大的效果

唉！就这样吧！！

大家将就看吧！

package com.Grap;  
  
  
import java.awt.BorderLayout;  
import java.awt.Container;  
import java.awt.FlowLayout;  
import java.awt.GridLayout;  
import java.awt.event.ActionEvent;  
import java.awt.event.ActionListener;  
import java.awt.event.ItemEvent;  
import java.awt.event.ItemListener;  
import java.io.BufferedInputStream;  
import java.io.BufferedReader;  
import java.io.FileNotFoundException;  
import java.io.FileOutputStream;  
import java.io.FileReader;  
import java.io.IOException;  
  
  
import javax.swing.ButtonGroup;  
import javax.swing.JButton;  
import javax.swing.JFrame;  
import javax.swing.JLabel;  
import javax.swing.JPanel;  
import javax.swing.JRadioButton;  
import javax.swing.JScrollPane;  
import javax.swing.JTextArea;  
  
  
public class javaIODemo extends JFrame implements ActionListener,ItemListener\{  
JPanel p1,p2,p3,p4;  
JLabel jlQuestion,jlSelect,jlScore;  
JButton startbutton,nextbutton,stopbutton;  
JTextArea textarea;  
JScrollPane scrollpane;  
JRadioButton button\[\];  
ButtonGroup buttongroup;  
BufferedReader br;  
String answer;  
  
void display() throws IOException\{  
p1=new JPanel();p2=new JPanel();  
p3=new JPanel();p4=new JPanel();  
jlQuestion=new JLabel("题目");  
jlSelect=new JLabel("选项");  
jlScore=new JLabel("");  
startbutton=new JButton("开始");  
nextbutton=new JButton("下一题");  
stopbutton=new JButton("结束");  
textarea=new JTextArea(3,30);  
scrollpane=new JScrollPane(textarea);  
button=new JRadioButton\[4\];  
buttongroup=new ButtonGroup();  
for(int i=0;i<4;i++)\{  
button\[i\]=new JRadioButton("");  
buttongroup.add(button\[i\]);  
button\[i\].addItemListener(this);  
\}  
br=new BufferedReader(new FileReader("G:\\\\text.txt"));  
int m=0;  
br.mark(m);  
Container c=getContentPane();//上部添加  
p3.add(jlQuestion);  
p3.add(scrollpane);  
c.add(p3,BorderLayout.NORTH);  
  
p1.setLayout(new GridLayout(2,1));//中心添加  
p1.add(p4); p1.add(jlScore);  
p4.add(jlSelect);  
for(int i=0;i<4;i++)\{  
p4.add(button\[i\]);  
\}  
c.add(p1,BorderLayout.CENTER);  
//p2.setLayout(new FlowLayout());  
p2.add(startbutton);//下部添加  
p2.add(nextbutton);  
p2.add(stopbutton);  
c.add(p2,BorderLayout.SOUTH);  
setSize(400, 300);  
setDefaultCloseOperation(JFrame.EXIT\_ON\_CLOSE);  
setVisible(true);  
startbutton.addActionListener(this);  
nextbutton.addActionListener(this);  
stopbutton.addActionListener(this);  
\}  
public void showquestion() throws Exception\{  
textarea.setText(br.readLine());  
for(int i=0;i<4;i++)\{  
button\[i\].setText(br.readLine());  
button\[i\].setEnabled(true);  
\}  
answer=br.readLine();  
jlScore.setText(" ");  
  
\}  
  
@Override  
public void itemStateChanged(ItemEvent e) \{  
// TODO Auto-generated method stub  
for(int i=0;i<4;i++)\{  
if(button\[i\].isSelected())  
if((int)answer.charAt(0)==i+65)  
jlScore.setText("恭喜你，答对了");  
else  
jlScore.setText("答案错误！");  
  
\}  
  
\}  
  
  
@Override  
public void actionPerformed(ActionEvent e) \{  
// TODO Auto-generated method stub  
if(e.getSource()==startbutton||e.getSource()==nextbutton)\{  
try\{  
showquestion();  
\}catch(Exception e1)\{  
e1.printStackTrace();  
\}  
\}  
if(e.getSource()==stopbutton)\{  
startbutton.setEnabled(false);  
nextbutton.setEnabled(false);  
//for(int i=0;i<4;i++)\{  
//if(button\[i\].isSelected())  
//button\[i\].setSelected(false);  
button\[i\].setEnabled(false);  
//\}  
stopbutton.setOpaque(true);  
stopbutton.addActionListener(this);  
\}  
\}  
  
  
public static void main(String\[\] args) throws Exception \{  
// TODO Auto-generated method stub  
(new javaIODemo()).display();  
\}

![70][]

![70 1][]

![70 2][]

![70 3][]

![70 4][]

最后做出来就是这样了啦！！

希望大家采纳！！

[70]: /images/20220524/316c123bc23845d1b2f7d136e6830159.png
[70 1]: /images/20220524/e2ad67eff5c24744ba5999406b2de888.png
[70 2]: /images/20220524/49c05a7718f54703a0deca3452d5503b.png
[70 3]: /images/20220524/6995d526f95846ab8886bfe8091a1eb2.png
[70 4]: /images/20220524/a3b6baa7b5774b8b968e30ea412ba2f0.png