只是想知道是否有可能追加到一个类中的jTextArea从一个单独的类?我基本上有一个简单的类,它不断运行计算,我想在我自己的类中创建的GUI上查看输出。该程序通过System.out.println正常执行,但我想现在在我的textarea上查看它。非常感谢任何指导。写从不同类的jTextArea
更新 - 下面的代码是我正在运行。有问题的区域是下面的(这是从一个相当大的类中的方法):
System.out.println("From Server:" + sentenceFromServer);
我想要这个输出被写入到一个单独的JTextArea这是另一个类,这是下面的类的下方。
客户端类
public void run() {
SocketForm form = new SocketForm();
//File file=null;
long startTime; // Starting time of program, in milliseconds.
long endTime; // Time when computations are done, in milliseconds.
double time;
System.out.println("Variables Set");
String serverName = "localhost";
try {
//if (args.length >= 1)
// serverName = args[0];
InetAddress serverIPAddress = InetAddress.getByName(serverName);
//get server port;
int serverPort = form.cliportNo;
//if (args.length >= 2)
// serverPort = Integer.parseInt(args[1]);
//create socket
DatagramSocket clientSocket = new DatagramSocket();
//get input from keybaord
byte[] sendData = new byte[byteSize];
//BufferedReader inFromUser = new BufferedReader(new InputStreamReader (System.in));
//while (true){
//String sentence = inFromUser.readLine();
startTime = System.currentTimeMillis();
//sendData = sentence.getBytes();
System.out.println("About to identify image");
String fileName = "/Users/Andrew/Desktop/pic.jpg";
File f = new File(fileName);
FileInputStream fis = null;
try {
fis = new FileInputStream(f);
System.out.println("Total file size to read in bytes is : " + fis.available());
} catch (IOException e) {}
Path path = Paths.get("/Users/Andrew/Desktop/pic.jpg");
//byte[] data = Fles.readAllBytes(path);
sendData = Files.readAllBytes(path);
try {
for(int index = 0; index < sendData.length ; index += byteSize) {
DatagramPacket packet = new DatagramPacket(sendData, index, Math.min(byteSize, sendData.length-index), serverIPAddress, serverPort);
clientSocket.send(packet);
//DatagramPacket sendPacket = new DatagramPacket(sendData, sendData.length, serverIPAddress, serverPort);
//receive datagram
byte[] receiveData = new byte [byteSize];
DatagramPacket receivePacket = new DatagramPacket(receiveData, receiveData.length);
clientSocket.receive(receivePacket);
//print output
String sentenceFromServer = new String(receivePacket.getData());
System.out.println("From Server:" + sentenceFromServer);
}
System.out.println("The End");
}
catch (Exception e) {}
//close client socket
//clientSocket.close();
endTime = System.currentTimeMillis();
time = endTime - startTime;
System.out.println("Time :" + time);
// }
}
catch (Exception e) {}
}
SocketForm类(GUI)
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(SocketForm.class.getName()).log(java.util.logging.Level.SEV
}
//</editor-fold>
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new SocketForm().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.ButtonGroup buttonGroup1;
private javax.swing.JPanel jPanel1;
private javax.swing.JPanel jPanel2;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JScrollPane jScrollPane2;
private javax.swing.JTabbedPane jTabbedPane1;
public static javax.swing.JTextArea jTextArea1;
private javax.swing.JTextField jTextField1;
private javax.swing.JTextField jTextField2;
// End of variables declaration
}
是的,这是可能的。也许你应该显示所有相关的代码。 –
同意,这是完全有可能的。但考虑到你的问题信息有限,这是关于所有人都可以告诉你的。试着问一个更好的更完整的问题,这个问题让我们有机会弄清楚什么可能不正确。 –
[如何在触发按钮动作时在循环中逐个显示java JTextarea中控制台输出的可能重复](http://stackoverflow.com/questions/14357418/how-to-display-console-output-in- java-jtextarea-one-by-one-in-a-loop-when-button) – Sage