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java窗体布局方式代码,java中布局
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java窗体飞机大战两张背景图片滚动循环如何实现，代码
package Task1;
//首先要调用需要的包
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class myFrame extends Frame //窗体类，继承Frame
{
CardLayout cl=new CardLayout(); //定义卡片布局
public void initial() //创建一个窗体
{
this.setBounds(500, 300, 300, 200); //窗体的大小和坐标
this.setTitle("图片自动浏览"); //窗体主题
this.setLayout(cl); //窗体采用的布局方式，上面已经定义了卡片布局，所以这里直接调用即可
this.setVisible(true); //显示窗体
JButton[] jbtn=new JButton[4]; //创建添加图片的数组，有几张图，数据成员就有几个
for(int i=0;i4;i++) //我这里是用循环来添加图片，所以上面要创建数组，当然分开一个一个的添加图片也是可以的
{
jbtn[i]=new JButton();
jbtn[i].setIcon(new ImageIcon("c://"+i+".jpg")); //这是所要添加图片的地址
this.add(jbtn[i],i+""); //显示
}
while(true) //关键的时候到了，如何让图片滚动循环，我这里是用了while循环来写的
{
cl.next(this); //图片的切换，下一张
try{Thread.sleep(3000);} //切换的间隔时间为3秒，也就是3000毫秒
catch(Exception e){}
}
}
public myFrame() //这是固定方法，窗体程序必须写，少了它整个程序完蛋，所以不多做解释
{
initial();
}
}
public class Test { //Test类，我这里是专门写主函数的
public static void main(String[] args) //主函数main
{
myFrame mf=new myFrame(); //实例化调用窗体类myFrame
}
}
ok，完成。程序复制过去以后可能会报错，并不是我写错了，我的有些包名或者类名还有大括号可能与你的不符合，你需要把细节方面的东西再做调试一下，然后在运行。
望采纳?谢谢！
相关问答
Q1: java东西南北中布局代码
FlowLayout 流式布局，从左到右，如果到边界就换行再从左到右。
BorderLayout 边界布局（默认布局方式），按东西南北中五个方向来布局，默认是中。后设置在同样位置的控件会覆盖之前的控件。
GridLayout 网格布局，将容器划分成若干行列的网格，从左到右，然后从上到下。每个控件的大小相同。
Q2: 急求Java窗体设计代码？我会追加分的
计算器：import java.awt.*;
import java.awt.event.*;
import java.awt.BorderLayout;
import javax.swing.JPanel;
import javax.swing.JFrame;
import java.awt.TextField;
import java.awt.Rectangle;
import java.awt.Button;
import java.awt.Label;public class suanfa extends JFrame {private static final long serialVersionUID = 1L;private JPanel jContentPane = null;private TextField textField = null;private TextField textField1 = null;private Button button = null;private Button button1 = null;private Button button2 = null;private Button button3 = null;private Label label = null;
double awn;
/**
* This is the default constructor
*/
public suanfa() {
super();
initialize();
}/**
* This method initializes this
*
* @return void
*/
private void initialize() {
this.setSize(300, 250);
this.setContentPane(getJContentPane());
this.setTitle("JFrame");
}/**
* This method initializes jContentPane
*
* @return javax.swing.JPanel
*/
private JPanel getJContentPane() {
if (jContentPane == null) {
label = new Label();
label.setBounds(new Rectangle(12, 129, 90, 27));
label.setText(String.format("%.6f",awn));
jContentPane = new JPanel();
jContentPane.setLayout(null);
jContentPane.add(getTextField(), null);
jContentPane.add(getTextField1(), null);
jContentPane.add(getButton(), null);
jContentPane.add(getButton1(), null);
jContentPane.add(getButton2(), null);
jContentPane.add(getButton3(), null);
jContentPane.add(label, null);
}
return jContentPane;
}/**
* This method initializes textField
*
* @return java.awt.TextField
*/
private TextField getTextField() {
if (textField == null) {
textField = new TextField();
textField.setBounds(new Rectangle(11, 20, 75, 32));
}
return textField;
}/**
* This method initializes textField1
*
* @return java.awt.TextField
*/
private TextField getTextField1() {
if (textField1 == null) {
textField1 = new TextField();
textField1.setBounds(new Rectangle(11, 67, 75, 32));
}
return textField1;
}/**
* This method initializes button
*
* @return java.awt.Button
*/
private Button getButton() {
if (button == null) {
button = new Button("加");
button.setBounds(new Rectangle(134, 17, 71, 29));
button.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent e) {
try{
awn=Double.valueOf(textField.getText()) + Double.valueOf(textField1.getText());
label.setText(String.format("%.6f",awn));
}
catch(Exception ex){
return;
}
}
});
}
return button;
}/**
* This method initializes button1
*
* @return java.awt.Button
*/
private Button getButton1() {
if (button1 == null) {
button1 = new Button("减");
button1.setBounds(new Rectangle(134, 52, 71, 29));
button1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent e) {
try{
awn=Double.valueOf(textField.getText()) - Double.valueOf(textField1.getText());
label.setText(String.format("%.6f",awn));
}
catch(Exception ex){
return;
}}
});
}
return button1;
}/**
* This method initializes button2
*
* @return java.awt.Button
*/
private Button getButton2() {
if (button2 == null) {
button2 = new Button("乘");
button2.setBounds(new Rectangle(134, 91, 71, 29));
button2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent e) {
try{
awn=Double.valueOf(textField.getText()) * Double.valueOf(textField1.getText());
label.setText(String.format("%.6f",awn));
}
catch(Exception ex){
return;
}}
});
}
return button2;
}/**
* This method initializes button3
*
* @return java.awt.Button
*/
private Button getButton3() {
if (button3 == null) {
button3 = new Button("除");
button3.setBounds(new Rectangle(134, 133, 71, 29));
button3.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent e) {
try{
awn=Double.valueOf(textField.getText()) / Double.valueOf(textField1.getText());
label.setText(String.format("%.6f",awn));
}
catch(Exception ex){
return;
}}
});
}
return button3;
}
public static void main(String[] args)
{
new suanfa().setVisible(true);
}
}
