java - 输出中的换行符

Question

我正在构建一个程序，它通过 GUI 接收带有换行符的输入字符串，将其拆分为行，然后拆分为单词，然后将其逐字传递给我仍然需要实现的方法，translate ，它会以某种方式接受一个词并将其与适当的词交换。目前，使用以下代码:

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */

/**
 *
 * @author michelegorini
 */
import java.util.Scanner;
import javax.swing.JFrame;
import javax.swing.JTextArea;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.WindowConstants;
import javax.swing.GroupLayout;
import javax.swing.LayoutStyle;
import javax.swing.SwingConstants;
public class HakkaTranslator extends JFrame {

    /**
     * Creates new form HakkaTranslator
     */
    public HakkaTranslator() {
        initComponents();
    }

    /**
     * This method is called from within the constructor to initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is always
     * regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents() {

        inputField = new JTextArea();
        translateButton = new JButton();
        pinyinField = new JLabel();
        hakkaCharField = new JLabel();
        mandCharField = new JLabel();

        setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);

        translateButton.setText("Translate");
        translateButton.addActionListener(new java.awt.event.ActionListener() {

            @Override
            public void actionPerformed(java.awt.event.ActionEvent e) {

                inpText = inputField.getText();
                String[] lines = inpText.split(System.lineSeparator());
                String[][] words = new String[lines.length][20];
                for(int i=0;i<lines.length;i++){
                    words[i] = lines[i].split(" ");
                }
                for(int i=0;i<lines.length;i++){
                    for(int j = 0;j<words[i].length;j++){
                        translate(words[i][j]);
                    }
                    translate(System.lineSeparator());
                }
            }
        });

        GroupLayout layout = new GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(layout.createParallelGroup(GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addComponent(hakkaCharField, GroupLayout.PREFERRED_SIZE, 282, GroupLayout.PREFERRED_SIZE)
                        .addPreferredGap(LayoutStyle.ComponentPlacement.RELATED, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                        .addComponent(mandCharField, GroupLayout.PREFERRED_SIZE, 216, GroupLayout.PREFERRED_SIZE))
                    .addGroup(layout.createSequentialGroup()
                        .addGroup(layout.createParallelGroup(GroupLayout.Alignment.TRAILING, false)
                            .addComponent(translateButton, GroupLayout.Alignment.LEADING, GroupLayout.DEFAULT_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                            .addComponent(inputField, GroupLayout.Alignment.LEADING, GroupLayout.DEFAULT_SIZE, 252, Short.MAX_VALUE))
                        .addPreferredGap(LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(pinyinField, GroupLayout.PREFERRED_SIZE, 282, GroupLayout.PREFERRED_SIZE)
                        .addGap(0, 0, Short.MAX_VALUE)))
                .addContainerGap())
        );

        layout.linkSize(SwingConstants.HORIZONTAL, new java.awt.Component[] {hakkaCharField, inputField, mandCharField, pinyinField});

        layout.setVerticalGroup(
            layout.createParallelGroup(GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(translateButton)
                .addPreferredGap(LayoutStyle.ComponentPlacement.RELATED)
                .addGroup(layout.createParallelGroup(GroupLayout.Alignment.LEADING, false)
                    .addComponent(pinyinField, GroupLayout.DEFAULT_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                    .addComponent(inputField, GroupLayout.DEFAULT_SIZE, 165, Short.MAX_VALUE))
                .addPreferredGap(LayoutStyle.ComponentPlacement.RELATED)
                .addGroup(layout.createParallelGroup(GroupLayout.Alignment.LEADING)
                    .addComponent(hakkaCharField, GroupLayout.PREFERRED_SIZE, 136, GroupLayout.PREFERRED_SIZE)
                    .addComponent(mandCharField))
                .addContainerGap(177, Short.MAX_VALUE))
        );

        layout.linkSize(SwingConstants.VERTICAL, new java.awt.Component[] {hakkaCharField, inputField, mandCharField, pinyinField});

        pack();
    }// </editor-fold>//GEN-END:initComponents

    private void translate(String word) {
        pinyinField.setText(pinyinField.getText() + word + " ");
    }
    /**
     * @param args the command line arguments
     */
    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(HakkaTranslator.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(HakkaTranslator.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(HakkaTranslator.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(HakkaTranslator.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        }
        //</editor-fold>

        /* Create and display the form */
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new HakkaTranslator().setVisible(true);
            }
        });
    }

    // Variables declaration - do not modify//GEN-BEGIN:variables
    private JLabel hakkaCharField;
    private JTextArea inputField;
    private JLabel mandCharField;
    private JLabel pinyinField;
    private JButton translateButton;
    // End of variables declaration//GEN-END:variables
    String inpText;
}

除了 translate 之外，我几乎所有的东西都正常工作了方法，这是下一步，事实上，我是否把 System.lineSeparator()或 "\n"作为 translate(System.lineSeparator()) 行中的参数，结果总是一个很大的空间，而我想要一个换行符。如何让换行符出现在输出中？

我会发布一张图片，但我没有足够的声誉。请注意，我刚刚尝试输入 ""<html><br/></html>""而不是 System.lineSeparator() , 鉴于 this question ，但这也没有用。我记得尝试过 MultiLineUI回答命令并获得 cannot find symbol或类似的东西。

Answer 1

    @Override
    public void actionPerformed(java.awt.event.ActionEvent e) {

        inpText = inputField.getText();
        String[] lines = inpText.split("\n");
        String[][] words = new String[lines.length][20];
        for(int i=0;i<lines.length;i++){
            words[i] = lines[i].split(" ");
        }
        translate("<html>");
        for(int i=0;i<lines.length;i++){
            for(int j = 0;j<words[i].length;j++){
                translate(words[i][j] );
            }
            translate("<br/>");
        }
        translate("</html>");
    }