AWT

总体上Swing组件替代了绝大部分AWT组件,对AWT图形用户界面编程有极好的补充和加强。

package ch11;import java.awt.*;/** * Created by Jiqing on 2016/12/1. */public class FrameTest {    public static void main(String[] args) {        Frame f = new Frame("测试窗口");        // 设置窗口的大小、位置        f.setBounds(30,30,250,200);        // 将窗口显示出来        f.setVisible(true);    }}

AWT容器

图形界面编程，类似于小朋友玩的拼图游戏，容器类似于拼图的母板，普通组件类似于拼图图块。

package ch11;import java.awt.*;/** * Created by Jiqing on 2016/12/1. */public class PanelTest {    public static void main(String[] args) {        Frame f = new Frame("测试页面");        Panel p = new Panel();        p.add(new TextField(20));        p.add(new Button("Click Me"));        f.add(p);        f.setBounds(30,30,250,120);        f.setVisible(true);    }}

FlowLayout布局管理器

组件像水流一样向某方向流动，遇到障碍就折回，重头开始排列。

package ch11;import java.awt.*;/** * Created by Jiqing on 2016/12/1. */public class FlowLayoutTest {    public static void main(String[] args) {        Frame f = new Frame("测试窗口");        // 设置Frame使用FlowLayout布局管理器        f.setLayout(new FlowLayout(FlowLayout.LEFT,20,5));        // 向窗口添加10个按钮        for (int i = 0;i<10;i++) {            f.add(new Button("Button"+i));        }        // 设置窗口为最佳大小        f.pack();        f.setVisible(true);    }}

BorderLayout布局管理器

BorderLayout将容器分为EAST、SOUTH、WEST、NORTH、CENTER五个区域。普通组件可以放在这五个区域中的任意一个。

默认添加到中间区域。

package ch11;import java.awt.*;import static java.awt.BorderLayout.*;/** * Created by Jiqing on 2016/12/1. */public class BorderLayoutTest {    public static void main(String[] args) {        Frame f = new Frame("测试窗口");        // 设置Frame容器使用BorderLayout布局管理器        f.setLayout(new BorderLayout(50,50));        f.add(new Button("S"),SOUTH);        f.add(new Button("N"),NORTH);        // 默认添加到中间区域        f.add(new Button("M"));        f.add(new Button("E"),EAST);        f.add(new Button("W"),WEST);        f.pack();        f.setVisible(true);    }}

GirdLayout布局管理器

GirdLayout布局管理器将容器分割成纵横分割的网格，每个网格所占据的领域大小相同。

package ch11;import java.awt.*;import static java.awt.BorderLayout.*; // 默认布局/** * Created by Jiqing on 2016/12/1. */public class GridLayoutTest {    public static void main(String[] args) {        Frame f = new Frame("计算器");        Panel p1 = new Panel();        p1.add(new TextField(30));        f.add(p1,NORTH); // import static java.awt.BorderLayout.*;        Panel p2 = new Panel();        p2.setLayout(new GridLayout(3,5,4,4));        String[] name = {
   "0","1","2","3","4","5","6","7","8","9","+","-","*","/","."};        for (int i = 0;i

GridBagLayout

与GridLayout不同,它可以跨越一个或多个网络，并可以设置网络的大小互不相同。

增加布局的灵活性

使用步骤

创建GridBagLayout布局管理器

创建GridBagConstraints对象

建立关联

添加组件

package ch11;import java.awt.*;/** * Created by Jiqing on 2016/12/2. */public class GridBagTest {    private Frame f = new Frame("测试窗口");    private GridBagLayout gb = new GridBagLayout();    private GridBagConstraints gbc = new GridBagConstraints();    private Button[] bs = new Button[10];    public void init() {        f.setLayout(gb);        for (int i = 0;i

BoxLayout

BoxLayout 可以在垂直和水平两个方向摆放控件

package ch11;import javax.swing.*;import java.awt.*;/** * Created by Jiqing on 2016/12/2. */public class BoxLayoutTest {    private Frame f = new Frame("测试");    public void init() {        f.setLayout(new BoxLayout(f,BoxLayout.Y_AXIS));        // 下面按钮将垂直排列        f.add(new Button("First Button"));        f.add(new Button("Second Button"));        f.pack();        f.setVisible(true);    }    public static void main(String[] args) {        new BoxLayoutTest().init();    }}

package ch11;import javax.swing.*;import java.awt.*;/** * Created by Jiqing on 2016/12/2. */public class BoxTest {    private Frame f = new Frame("测试");    // 定义水平组件Box对象    private Box horizontal = Box.createHorizontalBox();    // 定义垂直组件Box对象    private Box verical = Box.createVerticalBox();    public void init() {        horizontal.add(new Button("H btn1"));        horizontal.add(new Button("H btn2"));        verical.add(new Button("V btn1"));        verical.add(new Button("V btn2"));        f.add(horizontal,BorderLayout.NORTH);        f.add(verical);        f.pack();        f.setVisible(true);    }    public static void main(String[] args) {        new BoxTest().init();    }}

常用的

package ch11;import javax.swing.*;import java.awt.*;/** * Created by Jiqing on 2016/12/2. */public class CommonComponent {    Frame f = new Frame("测试");    Button ok = new Button("Confirm");    CheckboxGroup cbg = new CheckboxGroup();    Checkbox male = new Checkbox("Male",cbg,true);    Checkbox female = new Checkbox("Female",cbg,false);    Choice colorChooser = new Choice();    List colorList = new List(6,true);    TextArea ta = new TextArea(5,20);    TextField name = new TextField(50);    public void init() {        colorChooser.add("red");        colorChooser.add("green");        colorChooser.add("blue");        colorList.add("red");        colorList.add("green");        colorList.add("blue");        Panel bottom = new Panel();        bottom.add(name);        bottom.add(ok);        f.add(bottom,BorderLayout.SOUTH);        Panel checkPanel = new Panel();        checkPanel.add(colorChooser);        checkPanel.add(male);        checkPanel.add(female);        Box topLeft = Box.createVerticalBox();        topLeft.add(ta);        topLeft.add(checkPanel);        Box top = Box.createHorizontalBox();        top.add(topLeft);        top.add(colorList);        f.add(top);        f.pack();        f.setVisible(true);    }    public static void main(String[] args) {        new CommonComponent().init();    }}

Dialog对话框

对话框

package ch11;import java.awt.*;/** * Created by Jiqing on 2016/12/2. */public class DialogTest {    Frame f = new Frame("测试");    Dialog d1 = new Dialog(f,"Modal Dialog",true);    Dialog d2 = new Dialog(f,"Not Modal Dialog",false);    Button b1 = new Button("Open MD");    Button b2 = new Button("Open NMD");    public void init() {        d1.setBounds(20,30,300,400);        d2.setBounds(20,30,300,400);        b1.addActionListener(e->d1.setVisible(true));        b2.addActionListener(e->d2.setVisible(true));        f.add(b1);        f.add(b2,BorderLayout.SOUTH);        f.pack();        f.setVisible(true);    }    public static void main(String[] args) {        new DialogTest().init();    }}

package ch11;import java.awt.*;/** * Created by Jiqing on 2016/12/2. */public class FileDialogTest {    Frame f = new Frame("测试");    FileDialog d1 = new FileDialog(f,"load file",FileDialog.LOAD);    FileDialog d2 = new FileDialog(f,"save file",FileDialog.SAVE);    Button b1 = new Button("open");    Button b2 = new Button("save");    public void init() {        b1.addActionListener(e->{            d1.setVisible(true);            System.out.println(d1.getDirectory()+d1.getFile());        });        b2.addActionListener(e->{            d2.setVisible(true);            System.out.println(d2.getDirectory()+d2.getFile());        });        f.add(b1);        f.add(b2,BorderLayout.SOUTH);        f.pack();        f.setVisible(true);    }    public static void main(String[] args) {        new FileDialogTest().init();    }}

本文转自TBHacker博客园博客，原文链接：http://www.cnblogs.com/jiqing9006/p/6127749.html，如需转载请自行联系原作者