我已经尝试了很多不同的事情，但我似乎无法弄清楚如何去做。关于如何设置窗格中所有文本的颜色，我已经阅读了大约 40 页，但没有一个特定的位。我有一些源代码是 SSCCEE（无论它叫什么），但它没有我尝试过的内容，它只是显示我想要改变颜色的内容。
在tf.addActioListener()里面有一点
else {
tf.setText("> ");
tp.setText(tp.getText() + "> ERROR: Invalid Command" + newline);
try {
FileWriter fw = new FileWriter(file);
fw.write(tp.getText());
fw.close();
} catch (IOException ioe) {}
}
我希望将“> 错误：无效命令”的颜色更改为红色。
PS我忘了提到这是我正在制作的基于文本的游戏。在此先感谢，布雷登
代码：
package net.GUI.frame;
import java.awt.event.*;
import java.awt.*;
import java.io.*;
import javax.swing.*;
public class Frame {
public static void main(String[] args) {
JFrame frame = new JFrame();
final JTextPane tp = new JTextPane();
final JTextField tf = new JTextField();
JScrollPane sp = new JScrollPane();
JPanel panel = new JPanel();
final File file = new File("log.txt");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
frame.setSize(350,410);
tp.setEditable(false);
tp.setForeground(Color.blue);
tf.setText("> ");
sp.setViewportView(tp);
GroupLayout jPanel2Layout = new javax.swing.GroupLayout(panel);
panel.setLayout(jPanel2Layout);
jPanel2Layout.setHorizontalGroup(
jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(tf)
.addComponent(sp, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, 380, Short.MAX_VALUE)
);
jPanel2Layout.setVerticalGroup(
jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel2Layout.createSequentialGroup()
.addComponent(sp, javax.swing.GroupLayout.DEFAULT_SIZE, 352, Short.MAX_VALUE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(tf, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
);
GroupLayout layout = new javax.swing.GroupLayout(frame.getContentPane());
frame.getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(panel, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addContainerGap())
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(panel, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addContainerGap())
);
frame.addWindowListener( new WindowAdapter() {
public void windowOpened( WindowEvent e ){
tf.requestFocus();
}
});
/**File file10 = new File("Rooms/Room1/roomDescription.txt");
ByteArrayOutputStream baos = new ByteArrayOutputStream();
PrintStream ps = new PrintStream(baos);
PrintStream old = System.out;
System.setOut(ps);
try {
FileReader fr = new FileReader(file10);
int ch = fr.read();
while(ch != -1) {
System.out.print((char) ch);
ch = fr.read();
}
} catch (Exception ex) {
}
System.out.flush();
System.setOut(old);
tp.setText(baos.toString());
try {
FileWriter fw = new FileWriter(file);
fw.write(tp.getText());
fw.close();
} catch (IOException ioe) {
}*/
tp.setText("You find yourself in a blank room with a cot and a small stool. The walls are made of cold " +
"grey concrete and have been sanded smooth. There is a solid iron door set into one of the walls." +
" There are no windows." +
"\nWhat do you want to do?" +
"\n" +
"\n");
tf.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
String newline = "\n";
if(tf.getText().equals("> inspect cot")) {
String string = tf.getText();
tp.setText(tp.getText()+string + newline);
tf.setText("> ");
File file1 = new File("Rooms/Room1/inspectCot.txt");
ByteArrayOutputStream baos = new ByteArrayOutputStream();
PrintStream ps = new PrintStream(baos);
PrintStream old = System.out;
System.setOut(ps);
try {
FileReader fr = new FileReader(file1);
int ch = fr.read();
while(ch != -1) {
System.out.print((char) ch);
ch = fr.read();
}
} catch (Exception ex) {
}
System.out.flush();
System.setOut(old);
tp.setText(tp.getText() + (baos.toString()));
try {
FileWriter fw = new FileWriter(file);
fw.write(tp.getText());
fw.close();
} catch (IOException ioe) {
}
} else {
tf.setText("> ");
tp.setText(tp.getText() + "> ERROR: Invalid Command" + newline);
try {
FileWriter fw = new FileWriter(file);
fw.write(tp.getText());
fw.close();
} catch (IOException ioe) {
}
}
}
});
}
}
我已经使用 JTextArea 制作了游戏，但想让它在美学上更令人愉悦，如果你明白我的意思吗？