java - Swing 组件之间的新行

Question

我多次尝试搜索如何格式化 java swing 元素，但我似乎找不到任何东西。我曾尝试学习网格包布局，但它太复杂了。有人可以告诉我如何使用 Swing 放置 Swing 组件吗？谢谢!

编辑

代码:

import javax.swing.*;
import java.awt.*;

public class Format_Swing_Elemnts {
 public static void main(String[] args) {
JLabel title = new JLabel("Bridge Settings:");
title.setFont(font);
JLabel l1 = new JLabel("Number of Bars: "); 
JLabel l2 = new JLabel("Deck Elevation: "); 
JLabel l3 = new JLabel("Height of arch: "); 
JLabel l4 = new JLabel("Height of Pier: "); 
JLabel l5 = new JLabel("Cabel Anchorage: ");    
JLabel l6 = new JLabel("Concrete Type: ");  
final JLabel lM1 = new JLabel("meters");
final JLabel lM2 = new JLabel("meters");
final JLabel lM3 = new JLabel("meters");
final JRadioButton p1RB1 = new JRadioButton("Standard Abutments");
final JRadioButton p1RB2 = new JRadioButton("Arch Abutments");
final JRadioButton p2RB1 = new JRadioButton("No Pier (one span)");
final JRadioButton p2RB2 = new JRadioButton("Pier (two spans)");
final JRadioButton p3RB1 = new JRadioButton("No Cable Anchorage");
final JRadioButton p3RB2 = new JRadioButton("One Cable Anchorage");
final JRadioButton p3RB3 = new JRadioButton("Two Cable Anchorage");
final JRadioButton p4RB1 = new JRadioButton("Meduim Strength Concrete");
final JRadioButton p4RB2 = new JRadioButton("High Strength Concrete");
ButtonGroup p1 = new ButtonGroup();
p1.add(p1RB1);
p1.add(p1RB2);
ButtonGroup p2 = new ButtonGroup();
p2.add(p2RB1);
p2.add(p2RB2);
ButtonGroup p3 = new ButtonGroup();
p3.add(p3RB1);
p3.add(p3RB2);
p3.add(p3RB3);
ButtonGroup p4 = new ButtonGroup();
p4.add(p4RB1);
p4.add(p4RB2);

final SpinnerModel model = new SpinnerNumberModel(0, 0, 1000, 1);
final JSpinner numberBars = new JSpinner(model);
final JSpinner deckElevation = new JSpinner(new SpinnerNumberModel(24, 0, 24, 4));
final JSpinner archHeight = new JSpinner(new SpinnerNumberModel(4, 4, 24, 4));
final JSpinner pierHeight = new JSpinner(new SpinnerNumberModel(0, 0, 24, 4));
JFormattedTextField tf1 =       ((JSpinner.DefaultEditor)deckElevation.getEditor()).getTextField();
tf1.setEditable(false);
JFormattedTextField tf2 =  ((JSpinner.DefaultEditor)archHeight.getEditor()).getTextField();
tf2.setEditable(false);
JFormattedTextField tf3 = ((JSpinner.DefaultEditor)pierHeight.getEditor()).getTextField();
tf3.setEditable(false);

JButton quit = new JButton("Quit");
JButton continueB = new JButton("Continue");

JPanel format2 = new JPanel();

format2.add(title);
//New line
format2.add(l1);
format2.add(numberBars);
//New line
format2.add(l2);
format2.add(deckElevation);
format2.add(lM1);
//New line
format2.add(p1RB1);
format2.add(p1RB2);
format2.add(l3);
format2.add(archHeight);
format2.add(lM2);
//New line
format2.add(p2RB1);
format2.add(p2RB2);
format2.add(l4);
format2.add(pierHeight);
format2.add(lM3);
//New line
format2.add(l5);
format2.add(p3RB1);
format2.add(p3RB2);
format2.add(p3RB3);
//New line
format2.add(l6);
format2.add(p4RB1);
format2.add(p4RB2);
//New line
format2.add(quit);
format2.add(continueB);

JFrame part2Window = new JFrame("Part 2 - Adjust your settings");
part2Window.add(format2);
part2Window.setSize(290, 365);
part2Window.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
part2Window.setVisible(true);
part2Window.setLocationRelativeTo(null);
part2Window.setResizable(false);
part2Window.setAlwaysOnTop(true);
 }
}

Answer 1

我用那个 spacer 标签即兴创作了一点。我希望一些有经验的用户不会生气 ;)。但我希望这就是您要找的:

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JSpinner;
import javax.swing.SpinnerModel;
import javax.swing.SpinnerNumberModel;
import javax.swing.SwingUtilities;

import net.miginfocom.swing.MigLayout;

public class MyFormat extends JFrame {
    JPanel panel = new JPanel();

    JLabel spacer, bridgeSet, numOfBars, deckElev, meters, heightOfArch, heightOfPier,
    cabelAnch, concreteType;

    SpinnerModel model = new SpinnerNumberModel(0, 0, 1000, 1);
    JSpinner numberBars = new JSpinner(model);
    JSpinner deckElevation = new JSpinner(new SpinnerNumberModel(24, 0, 24, 4));
    JSpinner archHeight = new JSpinner(new SpinnerNumberModel(4, 4, 24, 4));
    JSpinner pierHeight = new JSpinner(new SpinnerNumberModel(0, 0, 24, 4));

    JRadioButton standAbut = new JRadioButton("Standard Abutments");
    JRadioButton archAbut = new JRadioButton("Arch Abutments");

    JRadioButton noPier = new JRadioButton("No Pier (one span)");
    JRadioButton pier = new JRadioButton("Pier (two spans)");

    JRadioButton noCabAnch = new JRadioButton("No Cable Anchorage");
    JRadioButton oneCabAnch = new JRadioButton("One Cable Anchorage");
    JRadioButton twoCabAnch = new JRadioButton("Two Cable Anchorage");

    JRadioButton medStrCon = new JRadioButton("Meduim Strength Concrete");
    JRadioButton highStrCon = new JRadioButton("High Strength Concrete");

    JButton continueBtn = new JButton("Continue");
    JButton quitBtn = new JButton("Quit");

    public MyFormat() {
        super("Adjust your settings");
        panel.setLayout(new MigLayout());
        panel.add(bridgeSet = new JLabel("Bridge settings:"), "wrap");
        panel.add(spacer = new JLabel(" "),"span, grow");
        panel.add(numberBars, "span, grow");
        panel.add(numOfBars = new JLabel("Number of bars:"));
        panel.add(numberBars, "span, grow");
        panel.add(deckElev = new JLabel("Deck elevation: "));
        panel.add(deckElevation);
        panel.add(meters = new JLabel("meters"), "wrap");
        panel.add(spacer = new JLabel(" "),"span, grow");
        panel.add(standAbut, "span, grow");
        panel.add(archAbut, "span, grow");
        panel.add(heightOfArch = new JLabel("Height of arch: "));
        panel.add(archHeight);
        panel.add(meters = new JLabel("meters"), "wrap");
        panel.add(spacer = new JLabel(" "),"span, grow");
        panel.add(noPier, "span, grow");
        panel.add(pier, "span, grow");
        panel.add(heightOfPier = new JLabel("Height of pier: "));
        panel.add(pierHeight);
        panel.add(meters = new JLabel("meters"), "wrap");
        panel.add(spacer = new JLabel(" "),"span, grow");
        panel.add(cabelAnch = new JLabel("Cable anchorage:"),"wrap");
        panel.add(noCabAnch,"span, grow");
        panel.add(oneCabAnch,"span, grow");
        panel.add(twoCabAnch,"span, grow");
        panel.add(spacer = new JLabel(" "),"span, grow");
        panel.add(concreteType = new JLabel("Concrete type: "),"wrap");
        panel.add(medStrCon,"span, grow");
        panel.add(highStrCon,"span, grow");
        panel.add(spacer = new JLabel(" "),"span, grow");
        panel.add(continueBtn);
        panel.add(quitBtn);
        add(panel);
    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                MyFormat mf = new MyFormat();
                mf.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
                mf.pack();
                mf.setLocationByPlatform(true);
                mf.setVisible(true);
            }
        });
    }
}

附言使用的布局:MigLayout