我正在使用GUI，我希望用户能够按下＆＃34;答案＆＃34;按钮，然后控制台将在textarea2上打印，同时启用用户输入。我需要做些什么才能让JTextArea（textarea2）作为控制台运行并在insertquestions方法中打印文本并接受用户输入？
package Scrambler;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;
import java.util.Random;
import java.util.Scanner;
public class GUI extends JFrame {
private JMenuBar menuBar;
private JButton button1;
private JButton button2;
private JPanel panel1;
private JPanel panel2;
private JTextField textfield2;
private JTextArea textarea;
private JTextArea textarea2;
private JTextField textfield5;
private JTextField textfield7;
public GUI() {
this.setTitle("UnScrambleGUI");
this.setSize(500, 400);
generateMenu();
this.setJMenuBar(menuBar);
JPanel contentPane = new JPanel(null);
contentPane.setPreferredSize(new Dimension(500, 400));
contentPane.setBackground(new Color(192, 192, 192));
button1 = new JButton();
button1.setBounds(56, 341, 103, 31);
button1.setBackground(new Color(214, 217, 223));
button1.setForeground(new Color(51, 153, 0));
button1.setEnabled(true);
button1.setFont(new Font("sansserif", 0, 12));
button1.setText("Print Words");
button1.setVisible(true);
button1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
insertwords(evt);
}
});
button2 = new JButton();
button2.setBounds(311, 341, 95, 31);
button2.setBackground(new Color(214, 217, 223));
button2.setForeground(new Color(51, 153, 0));
button2.setEnabled(true);
button2.setFont(new Font("sansserif", 0, 12));
button2.setText("Answer");
button2.setVisible(true);
button2.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
insertquestions(evt);
}
});
panel1 = new JPanel(null);
panel1.setBorder(BorderFactory.createEtchedBorder(1));
panel1.setBounds(22, 92, 179, 237);
panel1.setBackground(new Color(214, 217, 223));
panel1.setForeground(new Color(0, 0, 0));
panel1.setEnabled(true);
panel1.setFont(new Font("sansserif", 0, 12));
panel1.setVisible(true);
panel2 = new JPanel(null);
panel2.setBorder(BorderFactory.createEtchedBorder(1));
panel2.setBounds(229, 170, 258, 161);
panel2.setBackground(new Color(214, 217, 223));
panel2.setForeground(new Color(0, 0, 0));
panel2.setEnabled(true);
panel2.setFont(new Font("sansserif", 0, 12));
panel2.setVisible(true);
textfield2 = new JTextField();
textfield2.setBounds(74, 65, 89, 25);
textfield2.setBackground(new Color(153, 153, 153));
textfield2.setForeground(new Color(255, 255, 255));
textfield2.setEnabled(true);
textfield2.setFont(new Font("sansserif", 0, 12));
textfield2.setText(" Word List");
textfield2.setVisible(true);
textarea = new JTextArea();
textarea.setBounds(10, 9, 156, 219);
textarea.setBackground(new Color(255, 255, 255));
textarea.setForeground(new Color(0, 0, 0));
textarea.setEnabled(true);
textarea.setFont(new Font("sansserif", 0, 12));
textarea.setText("");
textarea.setVisible(true);
textarea2 = new JTextArea();
textarea2.setBounds(9, 9, 237, 143);
textarea2.setBackground(new Color(255, 255, 255));
textarea2.setForeground(new Color(0, 0, 0));
textarea2.setEnabled(true);
textarea2.setFont(new Font("sansserif", 0, 12));
textarea2.setText("");
textarea2.setVisible(true);
textfield5 = new JTextField();
textfield5.setBounds(307, 140, 89, 28);
textfield5.setBackground(new Color(153, 153, 153));
textfield5.setForeground(new Color(255, 255, 255));
textfield5.setEnabled(true);
textfield5.setFont(new Font("sansserif", 0, 12));
textfield5.setText(" Answer Here:");
textfield5.setVisible(true);
textfield7 = new JTextField();
textfield7.setBounds(164, 10, 175, 37);
textfield7.setBackground(new Color(102, 102, 102));
textfield7.setForeground(new Color(255, 255, 255));
textfield7.setEnabled(true);
textfield7.setFont(new Font("Tahoma", 0, 18));
textfield7.setText(" Unscrambler Game");
textfield7.setVisible(true);
contentPane.add(button1);
contentPane.add(button2);
contentPane.add(panel1);
contentPane.add(panel2);
contentPane.add(textfield2);
panel1.add(textarea);
panel2.add(textarea2);
contentPane.add(textfield5);
contentPane.add(textfield7);
this.add(contentPane);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setLocationRelativeTo(null);
this.pack();
this.setVisible(true);
}
private void insertwords(ActionEvent evt) {
Random r = new Random();
String word1 = "application";
String word2 = "programming";
String word3 = "variable";
String word4 = "method";
String word5 = "class";
String word6 = "package";
String word7 = "import";
String word8 = "boolean";
String word9 = "debugger";
String word10 = "syntax";
String word11 = "compile";
String word12 = "computer";
String line1 = "-----------------------------------------";
word1 = scramble(r, word1);
String one = "#1- " + word1;
word2 = scramble(r, word2);
String two = "#2- " + word2;
word3 = scramble(r, word3);
String three = "#3- " + word3;
word4 = scramble(r, word4);
String four = "#4- " + word4;
word5 = scramble(r, word5);
String five = "#5- " + word5;
word6 = scramble(r, word6);
String six = "#6- " + word6;
word7 = scramble(r, word7);
String seven = "#7- " + word7;
word8 = scramble(r, word8);
String eight = "#8- " + word8;
word9 = scramble(r, word9);
String nine = "#9- " + word9;
word10 = scramble(r, word10);
String ten = "#10- " + word10;
word11 = scramble(r, word11);
String elev = "#11- " + word11;
word12 = scramble(r, word12);
String twel = "#12- " + word12;
String line2 = ("-----------------------------------------");
textarea.setText(one + "\n" + two + "\n" + three + "\n" + four + "\n" + five + "\n" + six + "\n" + seven + "\n" + eight + "\n" + nine + "\n" + ten + "\n" + elev + "\n" + twel + "\n");
}
private void insertquestions(ActionEvent evt) {
boolean incorrect = true;
for (int attempts = 0; attempts < 3 && incorrect; attempts++) {
Scanner input = new Scanner(System.in);
System.out.println("What is the answer to #1?");
String answer1 = input.nextLine();
if (!"application".equals(answer1)) {
System.out.println("Incorrect. Hint: This runs on your computer.");
} else {
System.out.println("Correct.");
incorrect = false;
}
}
boolean incorrect2 = true;
for (int attempts = 0; attempts < 3 && incorrect2; attempts++) {
Scanner input = new Scanner(System.in);
System.out.println("What is the answer to #2?");
String answer2 = input.nextLine();
if (!"programming".equals(answer2)) {
System.out.println("Incorrect. Hint: Writing code for a computer.");
} else {
System.out.println("Correct.");
incorrect2 = false;
}
}
boolean incorrect3 = true;
for (int attempts = 0; attempts < 3 && incorrect3; attempts++) {
Scanner input = new Scanner(System.in);
System.out.println("What is the answer to #3?");
String answer3 = input.nextLine();
if (!"variable".equals(answer3)) {
System.out.println("Incorrect. Hint: A value in a program that can be changed.");
} else {
System.out.println("Correct.");
incorrect3 = false;
}
}
boolean incorrect4 = true;
for (int attempts = 0; attempts < 3 && incorrect4; attempts++) {
Scanner input = new Scanner(System.in);
System.out.println("What is the answer to #4?");
String answer4 = input.nextLine();
if (!"method".equals(answer4)) {
System.out.println("Incorrect. Hint: Tells the computer to do a procedure.");
} else {
System.out.println("Correct.");
incorrect4 = false;
}
}
boolean incorrect5 = true;
for (int attempts = 0; attempts < 3 && incorrect5; attempts++) {
Scanner input = new Scanner(System.in);
System.out.println("What is the answer to #5?");
String answer5 = input.nextLine();
if (!"class".equals(answer5)) {
System.out.println("Incorrect. Hint: Used to describe one or more objects in a program.");
} else {
System.out.println("Correct.");
incorrect5 = false;
}
}
boolean incorrect6 = true;
for (int attempts = 0; attempts < 3 && incorrect6; attempts++) {
Scanner input = new Scanner(System.in);
System.out.println("What is the answer to #6?");
String answer6 = input.nextLine();
if (!"package".equals(answer6)) {
System.out.println("Incorrect. Hint: Organizes a set of classes or interfaces.");
} else {
System.out.println("Correct.");
incorrect6 = false;
}
}
boolean incorrect7 = true;
for (int attempts = 0; attempts < 3 && incorrect7; attempts++) {
Scanner input = new Scanner(System.in);
System.out.println("What is the answer to #7?");
String answer7 = input.nextLine();
if (!"import".equals(answer7)) {
System.out.println("Incorrect. Hint: To send data from one program to another.");
} else {
System.out.println("Correct.");
incorrect7 = false;
}
}
boolean incorrect8 = true;
for (int attempts = 0; attempts < 3 && incorrect8; attempts++) {
Scanner input = new Scanner(System.in);
System.out.println("What is the answer to #8?");
String answer8 = input.nextLine();
if (!"boolean".equals(answer8)) {
System.out.println("Incorrect. Hint: True or False?");
} else {
System.out.println("Correct.");
incorrect8 = false;
}
}
boolean incorrect9 = true;
for (int attempts = 0; attempts < 3 && incorrect9; attempts++) {
Scanner input = new Scanner(System.in);
System.out.println("What is the answer to #9?");
String answer9 = input.nextLine();
if (!"debugger".equals(answer9)) {
System.out.println("Incorrect. Hint: Used to exterminate bugs.");
} else {
System.out.println("Correct.");
incorrect9 = false;
}
}
boolean incorrect10 = true;
for (int attempts = 0; attempts < 3 && incorrect10; attempts++) {
Scanner input = new Scanner(System.in);
System.out.println("What is the answer to #10?");
String answer10 = input.nextLine();
if (!"syntax".equals(answer10)) {
System.out.println("Incorrect. Hint: Set of rules to follow while programming.");
} else {
System.out.println("Correct.");
incorrect10 = false;
}
}
boolean incorrect11 = true;
for (int attempts = 0; attempts < 3 && incorrect11; attempts++) {
Scanner input = new Scanner(System.in);
System.out.println("What is the answer to #11?");
String answer11 = input.nextLine();
if (!"compile".equals(answer11)) {
System.out.println("Incorrect. Hint: To translate code into a understandable language for a machine.");
} else {
System.out.println("Correct.");
incorrect11 = false;
}
}
boolean incorrect12 = true;
for (int attempts = 0; attempts < 3 && incorrect12; attempts++) {
Scanner input = new Scanner(System.in);
System.out.println("What is the answer to #12?");
String answer12 = input.nextLine();
if (!"computer".equals(answer12)) {
System.out.println("Incorrect. Hint: What you are using right now.");
} else {
System.out.println("Correct.");
incorrect12 = false;
}
}
}
public void generateMenu() {
menuBar = new JMenuBar();
JMenu file = new JMenu("File");
JMenu tools = new JMenu("Tools");
JMenu help = new JMenu("Help");
JMenuItem open = new JMenuItem("Open ");
JMenuItem save = new JMenuItem("Save ");
JMenuItem exit = new JMenuItem("Exit ");
JMenuItem preferences = new JMenuItem("Preferences ");
JMenuItem about = new JMenuItem("About ");
file.add(open);
file.add(save);
file.addSeparator();
file.add(exit);
tools.add(preferences);
help.add(about);
menuBar.add(file);
menuBar.add(tools);
menuBar.add(help);
}
public static void main(String[] args) {
System.setProperty("swing.defaultlaf", "com.sun.java.swing.plaf.nimbus.NimbusLookAndFeel");
javax.swing.SwingUtilities.invokeLater(new Runnable() {
public void run() {
new GUI();
}
});
}
public static String scramble(Random random, String inputString) {
char a[] = inputString.toCharArray();
for (int n = 0; n < a.length - 1; n++) {
int k = random.nextInt(a.length - 1);
char temp = a[n];
a[n] = a[k];
a[k] = temp;
}
return new String(a);
}
}
答案 0 :(得分：1)
正如评论中所提到的，你不希望像你提议的那样将控制台程序插入到GUI中，因为虽然这是可行的，但它需要跳过线程箍，并且会编程反对 GUI库的事件驱动范例。
相反，我强烈建议你“重构”这个程序，即重新构造并从头开始重新编写它，着眼于创建一组可在事件驱动的环境中运行良好的强大类。 。我会将问题解构为非GUI模型类和GUI或“视图”类，最重要的是前者，模型。
例如，对于模型，请考虑创建以下类：
public boolean evaluate(String)方法字符串，以查看它是否正确，并且具有适当的构造函数，setter和getter。然后对于GUI，考虑创建
这里的键是按钮的ActionListeners。提交按钮的侦听器将通过调用其传递文本字段文本的evaluate(...)方法，针对当前显示的ScrambledWord对象测试JTextField中的文本。如果evaluate返回true，则递增学生的分数并显示其中的下一个问题QuestionPanel JPanel，可能带有public void setScrambledWord(ScrambledWord sWord)
这些只是建议，如果需要，您可以遵循，但我的主要建议是不要尝试强制您的控制台应用程序进入GUI。如果你这样做，你将不会是一个快乐的程序员。