如何捕捉output 信息到 jtextarea? 如何捕捉 console output 信息到 jtextarea?? 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 ByteArrayOutputStream bos = new ByteArrayOutputStream();PrintStream ps = new PrintStream(bos, true, "UTF-8");System.setOut(ps);System.out.println(...);...YourJTextArea.setText(bos.toString("UTF-8")); 谢谢…现在我希望用Java programes 再执行另一个 Java programs….如何将后者执行的output信息传到前者的 textarea JAVA不能处理WINDOWS的窗口句柄可以用TCP来连接两个不同的JAVA程序 如果不能, netbeans (call javac.exe) 如何编译 java files?? Process p = Runtime().getRuntime().exec("javac HelloWorld.java");InputStream is = p.getInputStream();is.read();... 奇怪没有信息output?请问哪里错了?查看该java file 已经被编译...该java file, 我故意用错误的code…也没有output.public class Test extends JFrame implements ActionListener { JTextArea jt = new JTextArea(10, 10); JButton button = new JButton("Start"); public Test() { super("Run Java"); jt.setText("Compile Output: \n"); button.addActionListener(this); getContentPane().add(jt, BorderLayout.CENTER); getContentPane().add(button, BorderLayout.SOUTH); setSize(400, 300); setDefaultCloseOperation(EXIT_ON_CLOSE); } public void startRun() { Runtime r = Runtime.getRuntime(); Process p = null; try { String s = "C:\\Program Files\\Java\\jdk1.6.0_07\\bin\\javac.exe C:\\myFile.java"; p = r.exec(s); BufferedReader is = new BufferedReader(new InputStreamReader(p.getInputStream())); String line; while ((line = is.readLine()) != null) { System.out.println(line); jt.append(line + " A\n"); jt.repaint(); } } catch (Exception e) { System.out.println("error===" + e.getMessage()); e.printStackTrace(); } } public void actionPerformed(ActionEvent e) { startRun(); }} import java.awt.BorderLayout;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.io.BufferedReader;import java.io.InputStreamReader;import javax.swing.JButton;import javax.swing.JFrame;import javax.swing.JTextArea;@SuppressWarnings("serial")public class Test extends JFrame implements ActionListener { JTextArea jt = new JTextArea(10, 10); JButton button = new JButton("Start"); public Test() { super("Run Java"); jt.setText("Compile Output: \n"); button.addActionListener(this); getContentPane().add(jt, BorderLayout.CENTER); getContentPane().add(button, BorderLayout.SOUTH); setSize(400, 300); setDefaultCloseOperation(EXIT_ON_CLOSE); } public void startRun() { Runtime r = Runtime.getRuntime(); Process p = null; try { String s = "C:\\Program Files\\Java\\jdk1.6.0_07\\bin\\javac.exe C:\\myFile.java"; //如果源文件没有语法错误是不会有输出信息的,所以要拿带语法错误的源文件测试 p = r.exec(s); BufferedReader is = new BufferedReader(new InputStreamReader(p.getErrorStream())); //javac.exe 非正常退出要用错误流获取输出信息即 p.getErrorStream() String line; while ((line = is.readLine()) != null) { System.out.println(line); jt.append(line + " A\n"); jt.repaint(); } } catch (Exception e) { System.out.println("error===" + e.getMessage()); e.printStackTrace(); } } public void actionPerformed(ActionEvent e) { startRun(); } public static void main(String[] args) { new Test().setVisible(true); }} JAVA程序的编译运行过程 如何访问内部类的私有数据... java开发网站用一套什么工具(学生做,不需要太复杂,也不要过简单。) 请大家帮忙分析一下。。。 大家看看这个简单的程序输出结果? jBuilder字体的问题! 两个区别的问题? 求助:Excel文件的读取 与 相同位置的单元格数据 汇总 如何用CSS控制表格 各位仁兄帮忙,小弟刚刚开始学习java,请大家用jBuider实现 ,谢谢!! 关于xml文件配置的问题,急死了! 两个String[][]数组的比较
PrintStream ps = new PrintStream(bos, true, "UTF-8");
System.setOut(ps);
System.out.println(...);
...
YourJTextArea.setText(bos.toString("UTF-8"));
谢谢…
现在我希望
用Java programes 再执行另一个 Java programs….
如何将后者执行的output信息传到前者的 textarea
可以用TCP来连接两个不同的JAVA程序
如果不能, netbeans (call javac.exe) 如何编译 java files??
InputStream is = p.getInputStream();
is.read();
...
奇怪没有信息output?
请问哪里错了?
查看该java file 已经被编译...
该java file, 我故意用错误的code…也没有output.public class Test extends JFrame implements ActionListener { JTextArea jt = new JTextArea(10, 10);
JButton button = new JButton("Start"); public Test() {
super("Run Java");
jt.setText("Compile Output: \n");
button.addActionListener(this);
getContentPane().add(jt, BorderLayout.CENTER);
getContentPane().add(button, BorderLayout.SOUTH); setSize(400, 300);
setDefaultCloseOperation(EXIT_ON_CLOSE); } public void startRun() {
Runtime r = Runtime.getRuntime();
Process p = null; try {
String s = "C:\\Program Files\\Java\\jdk1.6.0_07\\bin\\javac.exe C:\\myFile.java";
p = r.exec(s);
BufferedReader is = new BufferedReader(new InputStreamReader(p.getInputStream()));
String line; while ((line = is.readLine()) != null) {
System.out.println(line);
jt.append(line + " A\n");
jt.repaint();
} } catch (Exception e) {
System.out.println("error===" + e.getMessage());
e.printStackTrace();
}
} public void actionPerformed(ActionEvent e) {
startRun();
}
}
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JTextArea;@SuppressWarnings("serial")
public class Test extends JFrame implements ActionListener { JTextArea jt = new JTextArea(10, 10);
JButton button = new JButton("Start"); public Test() {
super("Run Java");
jt.setText("Compile Output: \n");
button.addActionListener(this);
getContentPane().add(jt, BorderLayout.CENTER);
getContentPane().add(button, BorderLayout.SOUTH);
setSize(400, 300);
setDefaultCloseOperation(EXIT_ON_CLOSE);
} public void startRun() {
Runtime r = Runtime.getRuntime();
Process p = null;
try {
String s = "C:\\Program Files\\Java\\jdk1.6.0_07\\bin\\javac.exe C:\\myFile.java";
//如果源文件没有语法错误是不会有输出信息的,所以要拿带语法错误的源文件测试
p = r.exec(s);
BufferedReader is = new BufferedReader(new InputStreamReader(p.getErrorStream()));
//javac.exe 非正常退出要用错误流获取输出信息即 p.getErrorStream()
String line;
while ((line = is.readLine()) != null) {
System.out.println(line);
jt.append(line + " A\n");
jt.repaint();
}
} catch (Exception e) {
System.out.println("error===" + e.getMessage());
e.printStackTrace();
}
} public void actionPerformed(ActionEvent e) {
startRun();
} public static void main(String[] args) {
new Test().setVisible(true);
}}