JOptionPane输出文本副本 [英] JOptionPane output text copy

问题描述

我没有 JOptionpane 的经验，但我需要一个简单的程序来简化我的生活。
我需要帮助的代码如下：

I have no experience with JOptionpane but I need a simple program to simplify my life. The code I need help with is below:

public static void main (String[] args) {
    String input = "";

    input = JOptionPane.showInputDialog("Enter code");

    JOptionPane.showMessageDialog(null, toStringU(toArray(input)), "RESULT",
            JOptionPane.INFORMATION_MESSAGE);

}

toStringU 方法给了我一个很长的文本

toStringU method gives me a long long text

我想在没有任何编译器的情况下运行它（一个独立的应用程序，双击，放置信息并获取结果）。

I want to run it without any compiler (a standalone application, double click, put info and take results).

我无法从输出面板复制结果，我需要复制。所以要么我需要复制它和/或我想把它写成一个txt文件（第二个会很棒）。

And I cant copy the result from output panel, which I need to copy. So either I need to copy it and/or I want to write it to a txt file (second one would be great).

推荐答案

JOptionPane 允许您指定 Object 作为message参数，如果此值为组件某种，它将被添加到 JOptionPane （ String s是自动使用 JLabel 进行渲染

JOptionPane allows you to specify an Object as the message parameter, if this value is a Component of some kind, it will be added to the JOptionPane (Strings are rendered using JLabel automatically)

通过设置类似 JTextArea的内容这是不可编辑的，你可以利用它的复制功能，而你需要做更多的工作......

By setting up something like a JTextArea that is not editable, you can take advantage of its copying capabilities, with out much more work on your part...

import java.awt.EventQueue;
import javax.swing.JOptionPane;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;

public class TestOptionPane11 {

    public static void main(String[] args) {
        new TestOptionPane11();
    }

    public TestOptionPane11() {
        EventQueue.invokeLater(new Runnable() {
            @Override
            public void run() {
                try {
                    UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
                } catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
                }

                JTextArea ta = new JTextArea(10, 10);
                ta.setText("This is some really long text that is likely to run over "
                        + "the viewable area and require some additional space to render "
                        + "properly, but you should be able to select and copy parts or "
                        + "whole sections of the text as you, but it should remain "
                        + "no editable...");
                ta.setWrapStyleWord(true);
                ta.setLineWrap(true);
                ta.setCaretPosition(0);
                ta.setEditable(false);

                JOptionPane.showMessageDialog(null, new JScrollPane(ta), "RESULT", JOptionPane.INFORMATION_MESSAGE);

            }
        });
    }
}

其他副作用

另一个副作用是 JTextArea 实际上可以将其内容写入 Writer 为你...

Additional side effects

Another side effect is the fact that the JTextArea can actually write it's contents to a Writer for you...

FileWriter writer = null;
try {
    writer = new FileWriter("SomeoutputFile.txt", false);
    ta.write(writer);
} catch (IOException exp) {
    exp.printStackTrace();
} finally {
    try {
        writer.close();
    } catch (Exception e) {
    }
}

这也允许你写一个文件......

Which allows you to write a file as well...

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