我做了一个问答游戏，我对下一个按钮有问题。下一个按钮必须转到下一个问题和下一个答案。在第一次执行下一个按钮后，它将转到第一个问题并回答，但不会继续第二个问题和答案。
guiandtests3.java package guiandtests3;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.Random;
import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
import org.json.simple.parser.JSONParser;
import org.json.simple.parser.ParseException;
public class Guiandtests3 {
/**
* @param args the command line arguments
*/
public static void main(String[] args) throws IOException, ParseException {
gui3 form = new gui3();
form.setVisible(true);
Random random = new Random();
int a = random.nextInt(3+1-0)+0;
int b = random.nextInt(3+1-0)+0;
int c = random.nextInt(3+1-0)+0;
int d = random.nextInt(3+1-0)+0;
JSONParser parser = new JSONParser();
Object obj = null;
obj = parser.parse(new FileReader("c:\\Matematika.json"));
JSONObject jsonObject = (JSONObject) obj;
JSONArray array = (JSONArray) jsonObject.get("data");
Iterator<Object> iterator = array.iterator();
//form.s11();
while (iterator.hasNext() ) {
//System.out.println("a");
if (form.getter()==form.g11()){
//System.out.println("abc");
JSONObject element=(JSONObject)iterator.next();
JSONArray abc = (JSONArray) element.get("jawaban");
Iterator<Object> iterator1 = abc.iterator();
ArrayList<String> results = new ArrayList<>();
System.out.println(element.get("soal"));
form.setquestion((String) element.get("soal"));
while (iterator1.hasNext()) {
results.add(iterator1.next().toString());
//System.out.println(iterator1.next());
}
System.out.println(results.get(0));
System.out.println(results.get(1));
while(a==b){
b = random.nextInt(3+1-0)+0;
}
while(a==c | b ==c){
c = random.nextInt(3+1-0)+0;
}
while(a==d | b ==d |c==d){
d = random.nextInt(3+1-0)+0;
}
form.setAnswer1(results.get(a));
form.setAnswer2(results.get(b));
form.setAnswer3(results.get(c));
form.setAnswer4(results.get(d));
form.setanswer(results.get(0));
form.s11();
}
}
}
}
gui3.java
package guiandtests3;
import javax.swing.JOptionPane;
/**
*
* @author abc
*/
public class gui3 extends javax.swing.JFrame {
public String question;
public String answer1;
public String answer2;
public String answer3;
public String answer4;
private int i=0;
private int aa=0;
private String correctanswer="empty";
public gui3() {
initComponents();
}
public void setanswer(String answer){
correctanswer = answer;
}
public String getanswer(){
return correctanswer;
}
public void setter(){
this.i = this.i +1;
}
public int getter(){
return this.i;
}
public void s11(){
this.aa=this.aa+1;
}
public int g11(){
return this.aa;
}
public void setAnswer1(String answer){
this.answer1=answer;
}
public String getAnswer1(){
return this.answer1;
}
public void setAnswer2(String answer){
this.answer2= answer;
}
public String getAsnwer2(){
return this.answer2;
}
public void setAnswer3(String answer){
this.answer3= answer;
}
public String getAsnwer3(){
return this.answer3;
}
public void setAnswer4(String answer){
this.answer4= answer;
}
public String getAsnwer4(){
return this.answer4;
}
public void setquestion(String question){
this.question=question;
}
public String getquestion(){
return this.question;
}
/**
* This method is called from within the constructor to initialize the form.
* WARNING: Do NOT modify this code. The content of this method is always
* regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jLabel1 = new javax.swing.JLabel();
jButton1 = new javax.swing.JButton();
jButton2 = new javax.swing.JButton();
jButton3 = new javax.swing.JButton();
jButton4 = new javax.swing.JButton();
jButton5 = new javax.swing.JButton();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jLabel1.setText("jLabel1");
jButton1.setText("jButton1");
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton1ActionPerformed(evt);
}
});
jButton2.setText("jButton2");
jButton2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton2ActionPerformed(evt);
}
});
jButton3.setText("jButton3");
jButton3.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton3ActionPerformed(evt);
}
});
jButton4.setText("jButton4");
jButton4.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton4ActionPerformed(evt);
}
});
jButton5.setText("Next");
jButton5.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton5ActionPerformed(evt);
}
});
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(176, 176, 176)
.addComponent(jLabel1))
.addGroup(layout.createSequentialGroup()
.addGap(156, 156, 156)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jButton2)
.addComponent(jButton1)
.addComponent(jButton3)
.addComponent(jButton4))))
.addGap(0, 161, Short.MAX_VALUE))
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addGap(0, 0, Short.MAX_VALUE)
.addComponent(jButton5)))
.addContainerGap())
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(47, 47, 47)
.addComponent(jLabel1)
.addGap(18, 18, 18)
.addComponent(jButton1)
.addGap(18, 18, 18)
.addComponent(jButton2)
.addGap(18, 18, 18)
.addComponent(jButton3)
.addGap(18, 18, 18)
.addComponent(jButton4)
.addGap(18, 18, 18)
.addComponent(jButton5)
.addContainerGap(34, Short.MAX_VALUE))
);
pack();
}// </editor-fold>
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
JOptionPane.showMessageDialog(rootPane,getanswer(),null,JOptionPane.ERROR_MESSAGE);
if(jButton1.getText() == getanswer() ){
JOptionPane.showMessageDialog(rootPane,"Correct",null,JOptionPane.ERROR_MESSAGE);
}else{
JOptionPane.showMessageDialog(rootPane,"Wrong",null,JOptionPane.ERROR_MESSAGE);
}
}
private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
if(jButton2.getText() == getanswer() ){
JOptionPane.showMessageDialog(rootPane,"Correct",null,JOptionPane.ERROR_MESSAGE);
}else{
JOptionPane.showMessageDialog(rootPane,"Wrong",null,JOptionPane.ERROR_MESSAGE);
}
}
private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) {
if(jButton3.getText() == getanswer() ){
JOptionPane.showMessageDialog(rootPane,"Correct",null,JOptionPane.ERROR_MESSAGE);
}else{
JOptionPane.showMessageDialog(rootPane,"Wrong",null,JOptionPane.ERROR_MESSAGE);
}
}
private void jButton4ActionPerformed(java.awt.event.ActionEvent evt) {
if(jButton4.getText() == getanswer() ){
JOptionPane.showMessageDialog(rootPane,"Correct",null,JOptionPane.ERROR_MESSAGE);
}else{
JOptionPane.showMessageDialog(rootPane,"Wrong",null,JOptionPane.ERROR_MESSAGE);
}
}
private void jButton5ActionPerformed(java.awt.event.ActionEvent evt) {
jLabel1.setText(question);
jButton1.setText(answer1);
jButton2.setText(answer2);
jButton3.setText(answer3);
jButton4.setText(answer4);
setter();
}
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
/* Set the Nimbus look and feel */
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
/* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
* For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(gui3.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(gui3.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(gui3.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(gui3.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new gui3().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JButton jButton1;
private javax.swing.JButton jButton2;
private javax.swing.JButton jButton3;
private javax.swing.JButton jButton4;
private javax.swing.JButton jButton5;
private javax.swing.JLabel jLabel1;
// End of variables declaration
}
json文件
{
"data":[
{
"id":"1",
"soal":"3 * 3 + 2 =",
"jawaban":[
"11",
"15",
"17",
"19"
]
},
{
"id":"2",
"soal":"20 / 5 =",
"jawaban":[
"4",
"3",
"2",
"1"
]
},
{
"id":"3",
"soal":"16 + 6 = ",
"jawaban":[
"22",
"21",
"20",
"24"
]
},
{
"id":"4",
"soal":"2 * 4 =",
"jawaban":[
"8",
"6",
"10",
"12"
]
},
{
"id":"5",
"soal":"1+4*2",
"jawaban":[
"8",
"10",
"12",
"14"
]
},
{
"id":"6",
"soal":"Jika A+1=10 , B+A=11 C= ?",
"jawaban":[
"EGP",
"1",
"12",
"22"
]
},
{
"id":"7",
"soal":"44/11",
"jawaban":[
"4",
"2",
"5",
"8"
]
},
{
"id":"8",
"soal":"1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1 = ",
"jawaban":[
"16",
"15",
"17",
"10"
]
},
{
"id":"9",
"soal":"Berapakah jawaban sebelumnya ",
"jawaban":[
"16",
"17",
"18",
"19"
]
}
]
}
答案 0 :(得分：2)
你需要将你的问题和答案传递给你的gui对象，这样迭代器才能真正转移到下一个结果＆＃39;。
您应该转到下一个按钮而不是主要功能中的下一个结果，因为您的gui无法访问这些问题，gui中的任何内容都无法从您从主数据中收集的结果中获取信息文件。
考虑将文件的初始读取从main函数移动到＆＃39; gui3＆＃39;对象构造函数并制作＆＃39;结果＆＃39; ArrayList可用作gui的实例变量。
首次阅读JSON文件时，您使用的随机数非常容易混淆，但您想要找出一种方法，将问题与单个数组中的答案排成一行
示例：
ArrayList<ArrayList<String>> results = new ArrayList<ArrayList<String>>();
ArrayList<String> question = new ArrayList<>()
question.add(question);
question.add(answer1);
question.add(answer2);
question.add(answer3);
question.add(answer4);
results.add(questions);
然后当你按下“按钮”时，下一步＆＃39;按，你可以
jLabel1.setText(results.get(i).get(0));
jButton1.setText(results.get(i).get(1));
jButton2.setText(results.get(i).get(2));
jButton3.setText(results.get(i).get(3));
jButton4.setText(results.get(i).get(4));
i++; // Or use your setter() function?
根据评论中关于如何将JSON纳入数组列表的问题，它与您现在的方式非常相似，但您需要添加＆＃39;它到ArrayList而不是立即使用它。
类似的东西：
JSONParser parser = new JSONParser();
Object obj = null;
obj = parser.parse(new FileReader("c:\\Matematika.json"));
JSONObject jsonObject = (JSONObject) obj;
JSONArray array = (JSONArray) jsonObject.get("data");
ArrayList<ArrayList<String>> results = new ArrayList<ArrayList<String>>();
ArrayList<String> question = new ArrayList<>();
Iterator<Object> iterator = array.iterator();
while (iterator.hasNext() ) {
String questionString = element.get("soal");
question.add(questionString);
JSONArray answers = (JSONArray) jsonObject.get("jawaban");
Iterator<String> iterator2 = answers.iterator();
int count = 0;
//The following limits it to pulling back 4 answers from the JSON jawaban element
while (iterator2.hasNext() && count < 4) {
String answer = iterator2.next();
question.add(answer);
count++;
}
results.add(question);
}
将此代码放在gui3对象的构造函数中 - 或者将其传递给gui3构造函数，并使构造函数的结果如下：
public class gui3 extends javax.swing.JFrame {
ArrayList<ArrayList<String>> results;
//Your other code here
public gui3(ArrayList<ArrayList<String>> results) {
this.results = results;
initComponents();
}
// Your other code here
}
请注意，您需要将此结果ArrayList放在Class Instance范围内，因此您需要将声明移到构造函数之外。