第36天学习打卡（窗口，面板，弹窗，标签，按钮，列表，文本框）
package com.kuang.lesson04;
import javax.swing.*;
import java.awt.*;
public class JFrameDemo {
//init()初始化
public void init(){
//JFrame顶层窗口
JFrame jf = new JFrame("这是一个JFrame窗口");
jf.setVisible(true);
jf.setBounds(100,100,200,200);
jf.setBackground(Color.cyan);
//设置文字JLabel
JLabel label = new JLabel("欢迎来到狂神说java系列节目");
jf.add(label);
//容器
//关闭事件
jf.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
}
public static void main(String[] args) {
//建立一个窗口
new JFrameDemo().init();
}
}
标签居中：
package com.kuang.lesson04;
import javax.swing.*;
import java.awt.*;
public class JFrameDemo02{
public static void main(String[] args) {
new MyJFrame2().init();
}
}
class MyJFrame2 extends JFrame{
public void init(){
this.setBounds(10,10,200,300);
this.setVisible(true);
JLabel label = new JLabel("欢迎来到狂神说java系列节目");
add(label);
//让文本标签居中
label.setHorizontalAlignment(SwingConstants.CENTER);
//获得一个容器
Container container = this.getContentPane();
container.setBackground(Color.BLUE);
}
}
1.2弹窗
JDialog,用来被弹出，默认就有关闭事件！
package com.kuang.lesson04;
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
//主窗口
public class DialogDemo extends JFrame {
public DialogDemo(){
this.setVisible(true);
this.setSize(700,500);
this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
//JFrame放东西，容器
Container container = this.getContentPane();
//绝对布局
container.setLayout(null);
//按钮
JButton button = new JButton("点击弹出一个对话框");//创建对象
button.setBounds(30,30,200,50);
//点击这个按钮的时候，弹出一个弹窗
button.addActionListener(new ActionListener() {//监听器
1.3标签
labe
图标Icon
package com.kuang.lesson04;
import javax.swing.*;
import java.awt.*;
//图标是一个接口，需要实现类，Frame是个类需要继承
public class IconDemo extends JFrame implements Icon {
private int width;
private int height;
public IconDemo(){}//无参构造
public IconDemo(int width,int height){
this.width = width;
this.height = height;
}
public void init(){
IconDemo iconDemo = new IconDemo(15,15);
//图标放在标签上，也可以放在按钮上
JLabel label = new JLabel("icontest",iconDemo,SwingConstants.CENTER);
Container container = getContentPane();
container.add(label);
this.setVisible(true);
this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
}
public static void main(String[] args) {
new IconDemo().init();
}
图片Icon
package com.kuang.lesson04;
import javax.swing.*;
import java.awt.*;
import java.net.URL;
public class ImageIconDemo extends JFrame {
public ImageIconDemo() {
//获取图片的地址
JLabel label = new JLabel("ImageIcon");
//url为具体的地址
URL url = ImageIconDemo.class.getResource("10.jpg");//通过这个类获取当前类路径下的东西
ImageIcon imageIcon = new ImageIcon(url);//命名不要冲突了
label.setIcon(imageIcon);
label.setHorizontalAlignment(SwingConstants.CENTER);
Container container = getContentPane();
container.add(label);
setVisible(true);
setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
setBounds(100,200,200,200);
}
public static void main(String[] args) {
new ImageIconDemo();
}
}
1.4 面板
JPanel
package com.kuang.lesson05;
import javax.swing.*;
import java.awt.*;
public class JPanelDemo extends JFrame {
public JPanelDemo() {
Container container = this.getContentPane();
container.setLayout(new GridLayout(2,1,10,10));//后面的参数的意思，间距
JPanel panel1 = new JPanel(new GridLayout(1,3));
JPanel panel2 = new JPanel(new GridLayout(1,2));
JPanel panel3 = new JPanel(new GridLayout(2,1));
JPanel panel4 = new JPanel(new GridLayout(3,2));
panel1.add(new JButton("1"));
panel1.add(new JButton("1"));
panel1.add(new JButton("1"));
panel2.add(new JButton("2"));
panel2.add(new JButton("2"));
panel3.add(new JButton("3"));
panel3.add(new JButton("3"));
panel4.add(new JButton("4"));
panel4.add(new JButton("4"));
panel4.add(new JButton("4"));
panel4.add(new JButton("4"));
panel4.add(new JButton("4"));
panel4.add(new JButton("4"));
container.add(panel1);
container.add(panel2);
container.add(panel3);
container.add(panel4);
this.setVisible(true);
this.setSize(500,500);
this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
}
public static void main(String[] args) {
new JPanelDemo();
}
}
JScrollPanel
设置边框滑动条：
package com.kuang.lesson05;
import javax.swing.*;
import java.awt.*;
public class JScrollDemo extends JFrame {
public JScrollDemo(){
Container container = this.getContentPane();
//文本域
JTextArea textArea = new JTextArea(20,50);
textArea.setText("欢迎学习狂神java");
//Scroll面板
JScrollPane scrollPane = new JScrollPane(textArea);//设置边框的滚动条
container.add(scrollPane);
this.setVisible(true);
this.setBounds(100,100,300,350);
this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
}
public static void main(String[] args) {
new JScrollDemo();
}
}
1.5按钮
图片按钮
package com.kuang.lesson05;
import javax.swing.*;
import java.awt.*;
import java.net.URL;
public class JButtonDemo01 extends JFrame {
public JButtonDemo01() {
//将一个图片变为图标
Container container = this.getContentPane();
URL resource = JButtonDemo01.class.getResource("10.jpg");
Icon icon = new ImageIcon(resource);
//把这个图标放在按钮上
JButton button = new JButton();
button.setIcon(icon);
button.setToolTipText("图片按钮");
//add
container.add(button);//按钮加到容器上
this.setVisible(true);
this.setSize(500,300);
this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
}
public static void main(String[] args) {
new JButtonDemo01();
}
}
单选按钮
package com.kuang.lesson05;
import javax.swing.*;
import java.awt.*;
import java.net.URL;
public class JButtonDemo02 extends JFrame {
public JButtonDemo02() {
//将一个图片变为图标
Container container = this.getContentPane();
URL resource = JButtonDemo01.class.getResource("10.jpg");
Icon icon = new ImageIcon(resource);
//单选框
JRadioButton radioButton1 = new JRadioButton("JRadioButton01");
JRadioButton radioButton2 = new JRadioButton("JRadioButton02");
JRadioButton radioButton3 = new JRadioButton("JRadioButton03");
//由于单选框只能选择一个，进行分组，一个组里面只能选一个
ButtonGroup group = new ButtonGroup();
group.add(radioButton1);
group.add(radioButton2);
group.add(radioButton3);
container.add(radioButton1,BorderLayout.CENTER);
container.add(radioButton2,BorderLayout.NORTH);
container.add(radioButton3,BorderLayout.SOUTH);
this.setVisible(true);
this.setSize(500,300);
this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
}
public static void main(String[] args) {
new JButtonDemo02();
}
}
复选按钮
package com.kuang.lesson05;
import javax.swing.*;
import java.awt.*;
import java.net.URL;
public class JButtonDemo03 extends JFrame {
public JButtonDemo03() {
//将一个图片变为图标
Container container = this.getContentPane();
URL resource = JButtonDemo01.class.getResource("10.jpg");
Icon icon = new ImageIcon(resource);
//多选框
JCheckBox checkBox01 = new JCheckBox("chechBox01");
JCheckBox checkBox02 = new JCheckBox("chechBox02");
container.add(checkBox01,BorderLayout.NORTH);
container.add(checkBox02,BorderLayout.SOUTH);
this.setVisible(true);
this.setSize(500,300);
this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
}
public static void main(String[] args) {
new JButtonDemo03();
}
}
1.6列表
下拉框
package com.kuang.lesson06;
import javax.swing.*;
import java.awt.*;
public class TestComboboxDemo01 extends JFrame {
public TestComboboxDemo01() {
Container container = this.getContentPane();
JComboBox status = new JComboBox();
status.addItem(null);
status.addItem("正在上映");
status.addItem("已下架");
status.addItem("即将上映");
container.add(status);
this.setVisible(true);
this.setSize(500,350);
this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
}
public static void main(String[] args) {
new TestComboboxDemo01();
}
}
列表框
package com.kuang.lesson06;
import javax.swing.*;
import java.awt.*;
import java.util.Vector;
public class TestComboboxDemo02 extends JFrame {
public TestComboboxDemo02() {
Container container = this.getContentPane();
//生成列表的内容
//String[] contents = {"1","2","3"};
Vector contents = new Vector();
//列表中需要放入内容
JList jList = new JList(contents);
contents.add("zhangsan");
contents.add("lisi");
contents.add("wangwu");
container.add(jList);
this.setVisible(true);
this.setSize(500,350);
this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
}
public static void main(String[] args) {
new TestComboboxDemo02();
}
}
应用场景
下拉框可以选择地区，或者一些单个选项
列表，展示信息，一般是动态扩容！
1.7文本框
文本框
package com.kuang.lesson06;
import javax.swing.*;
import java.awt.*;
import java.util.Vector;
public class TestTextDemo01 extends JFrame {
public TestTextDemo01() {
Container container = this.getContentPane();
JTextField textField = new JTextField("hello");
JTextField textField2 = new JTextField("world",20);
container.add(textField,BorderLayout.NORTH);
container.add(textField2,BorderLayout.SOUTH);
this.setVisible(true);
this.setSize(500,350);
this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
}
public static void main(String[] args) {
new TestTextDemo01();
}
}
密码框
package com.kuang.lesson06;
import javax.swing.*;
import java.awt.*;
public class TestTextDemo03 extends JFrame {
public TestTextDemo03() {
Container container = this.getContentPane();
//面板
JPasswordField passwordField = new JPasswordField();//*****
passwordField.setEchoChar('*');
container.add(passwordField);
this.setVisible(true);
this.setSize(500,350);
this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
}
public static void main(String[] args) {
new TestTextDemo03();
}
}
文本域：
package com.kuang.lesson05;
import javax.swing.*;
import java.awt.*;
public class JScrollDemo extends JFrame {
public JScrollDemo(){
Container container = this.getContentPane();
//文本域
JTextArea textArea = new JTextArea(20,50);
textArea.setText("欢迎学习狂神java");
//Scroll面板
JScrollPane scrollPane = new JScrollPane(textArea);//设置边框的滚动条
container.add(scrollPane);
this.setVisible(true);
this.setBounds(100,100,300,350);
this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
}
public static void main(String[] args) {
new JScrollDemo();
}
}
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