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摘要： import java.awt.BorderLayout;import java.awt.CardLayout;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import javax.swing.*;class MyPanel extends JPanel { MyPanel(int n) { add(new JLabel(" "+n+" ")); }}class MainFrame extends JFrame implements ActionListe. 阅读全文

摘要： //找出两个字符串中最长的相同子字符串public class Stringdemo { public static void main(String[] args) { String str1 = new String("eeabcde"); String str2 = new String("bcdefabcabcdedegg"); by... 阅读全文