原创 ChainedExceptionDemo

public class ChainedExceptionDemo {     public static void main(String[] args) {         try {             method1();  

2020-06-26 21:19:39

原创 ShowBorderLayout

import javax.swing.JButton; import javax.swing.JFrame; import java.awt.BorderLayout; public class ShowBorderLayout exte

2020-06-26 21:19:29

原创 TestComparableRectangle

// Interface for comparing objects, defined in java.lang /** Find a maximum object */ class Max {     public static Com

2020-06-26 21:19:29

原创 HandleEvent

import javax.swing.*; import java.awt.event.*; public class HandleEvent extends JFrame {     public HandleEvent() {   

2020-06-26 21:19:29

原创 FinallyDemo

import java.io.IOException; public class FianllyDemo {     public static void main(String[] args) {         java.io.Pri

2020-06-26 21:19:29

原创 DetectSourceDemo

import javax.swing.*; import java.awt.event.*; public class DetectSourceDemo extends JFrame {     // Create four button

2020-02-24 19:52:10

原创 ControlCircle

import java.awt.*; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.*; publi

2020-02-24 19:52:10

原创 ShowGridLayout

import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JTextField; import java.awt.GridLayout; public

2020-02-24 19:52:10 1

原创 FrameAsListenerDemo

import javax.swing.*; import java.awt.event.*; public class FrameAsListenerDemo extends JFrame     implements ActionLis

2020-02-24 19:52:10

原创 AnonymousListenerDemo

import javax.swing.*; import java.awt.event.*; public class AnonymousListenerDemo extends JFrame {     public Anonymous

2020-02-24 19:52:10

原创 兩個隊列模擬一個棧

題目：用兩個隊列模擬一個棧，即用兩個隊列的出隊和入隊操作，來實現棧的出棧和入棧操作。 思路：稍微畫下草圖，便不難想出該題的解決方法，思路如下：     假設有兩個隊列Q1和Q2，當二者都爲空時，入棧操作可以用入隊操作來模擬，可以隨便選一個

2020-02-24 19:52:10

原创 Draw string

import javax.swing.*; import java.awt.*; public class TestCenterMessage extends JFrame {     public TestCenterMessage()

2020-02-24 19:52:10

原创 JPanelTest

import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JButton; import javax.swing.JTextField; import

2020-02-24 19:52:10

原创 Graphics

import java.awt.*; import javax.swing.*; import javax.swing.border.LineBorder; public class TestFigurePanel extends JFr

2020-02-24 19:52:10

原创 DrawPolygon

import javax.swing.JFrame; import javax.swing.JPanel; import java.awt.Color; import java.awt.Graphics; import java.awt.

2020-02-24 19:52:10