import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.*;
import javax.swing.*;public class DemoJFrame {public static void main(String[] args) {EventQueue.invokeLater(() -> {JFrame frame = new FrameTest();frame.setTitle("Students Detail");frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);frame.setVisible(true);});}
}class FrameTest extends JFrame {private JPanel panel;private JTextField fieldname;private JTextField fieldadress;private JRadioButton male, female;private ButtonGroup bg;private JLabel jPanel;private JCheckBox reading, singsing, dancing;private JComboBox<String> JComboBox;private JButton validate, reset;public FrameTest() {setSize(700, 500);panel = new JPanel();panel.setLayout(null);bg = new ButtonGroup();male = new JRadioButton("Male", false);male.setBounds(150, 330, 80, 50);female = new JRadioButton("Female", false);female.setBounds(150, 300, 80, 50);bg.add(male);bg.add(female);addJLabel("sex:", 100, 300);addJLabel("name:", 100, 50);addJLabel("address:", 100, 150);addJLabel("Qualification:", 400, 50);addJLabel("Hobby:", 400, 150);fieldname = new JTextField();fieldname.setBounds(150, 70, 120, 30);fieldname.setVisible(true);fieldadress = new JTextField();fieldadress.setBounds(150, 160, 130, 100);fieldadress.setVisible(true);reading = new JCheckBox("Reading");reading.setBounds(450, 160, 100, 30);singsing = new JCheckBox("dancing");singsing.setBounds(450, 180, 100, 30);dancing = new JCheckBox("singing");dancing.setBounds(450, 200, 100, 30);JComboBox = new JComboBox<>();JComboBox.addItem("初中");JComboBox.addItem("高中");JComboBox.addItem("大学");JComboBox.setBounds(500, 65, 100, 20);validate = new JButton("提交");validate.setBounds(200, 400, 100, 35);reset = new JButton("重置");reset.setBounds(400, 400, 100, 35);validate.addActionListener(new Action1());reset.addActionListener(new Action2());panel.add(reading);panel.add(singsing);panel.add(dancing);panel.add(validate);panel.add(reset);panel.add(JComboBox);panel.add(fieldname);panel.add(fieldadress);panel.add(male);panel.add(female);add(panel);}public void addJLabel(String n, int a, int b) {jPanel = new JLabel(n);jPanel.setBounds(a, b, 100, 50);panel.add(jPanel);}private class Action1 implements ActionListener {public void actionPerformed(ActionEvent event) {System.out.println("name:" + fieldname.getText() + "\n" + "address:" + fieldadress.getText());System.out.println("Qualification:" + JComboBox.getSelectedItem());System.out.println("Hobby:");if (reading.isSelected() == true)System.out.print(reading.getText());if (singsing.isSelected() == true)System.out.print(singsing.getText());if (dancing.isSelected() == true)System.out.print(dancing.getText());System.out.println("\n" + "sex:");if (male.isSelected() == true)System.out.println(male.getText());if (female.isSelected() == true)System.out.println(female.getText());}}private class Action2 implements ActionListener {public void actionPerformed(ActionEvent event) {fieldname.setText(null);fieldadress.setText(null);reading.setSelected(false);singsing.setSelected(false);dancing.setSelected(false);bg.clearSelection();JComboBox.setSelectedIndex(0);}}
}

package ID;import java.awt.*;
import javax.swing.*;/*** @version 1.34 2015-06-12* @author Cay Horstmann*/
public class button {public static void main(String[] args) {EventQueue.invokeLater(() -> {JFrame frame = new Main();frame.setTitle("身份证");frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);frame.setVisible(true);});}
}

package ID;public class Person implements Comparable<Person> {private String name;private String ID;private int age;private String sex;private String birthplace;public String getname() {return name;}public void setname(String name) {this.name = name;}public String getID() {return ID;}public void setID(String ID) {this.ID = ID;}public int getage() {return age;}public void setage(int age) {this.age = age;}public String getsex() {return sex;}public void setsex(String sex) {this.sex = sex;}public String getbirthplace() {return birthplace;}public void setbirthplace(String birthplace) {this.birthplace = birthplace;}public int compareTo(Person o) {return this.name.compareTo(o.getname());}public String toString() {return name + "\t" + sex + "\t" + age + "\t" + ID + "\t" + birthplace + "\n";}
}

package ID;import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.*;
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;public class Main extends JFrame {private static ArrayList<Person> personlist;private static ArrayList<Person> list;private JPanel panel;private JPanel buttonPanel;private static final int DEFAULT_WIDTH = 600;private static final int DEFAULT_HEIGHT = 300;public Main() {personlist = new ArrayList<>();Scanner scanner = new Scanner(System.in);File file = new File("身份证号.txt");try {FileInputStream fis = new FileInputStream(file);BufferedReader in = new BufferedReader(new InputStreamReader(fis));String temp = null;while ((temp = in.readLine()) != null) {Scanner linescanner = new Scanner(temp);linescanner.useDelimiter(" ");String name = linescanner.next();String ID = linescanner.next();String sex = linescanner.next();String age = linescanner.next();String place = linescanner.nextLine();Person Person = new Person();Person.setname(name);Person.setID(ID);Person.setsex(sex);int a = Integer.parseInt(age);Person.setage(a);Person.setbirthplace(place);personlist.add(Person);}} catch (FileNotFoundException e) {System.out.println("查找不到信息");e.printStackTrace();} catch (IOException e) {System.out.println("信息读取有误");e.printStackTrace();}JPanel panel = new JPanel();panel.setLayout(new BorderLayout());JTextArea jt = new JTextArea();panel.add(jt);add(panel, BorderLayout.CENTER);JPanel buttonPanel = new JPanel();buttonPanel.setLayout(new GridLayout(1, 7));JButton jButton = new JButton("字典排序");JButton jButton1 = new JButton("年龄最大和年龄最小");JLabel lab = new JLabel("你的老乡");JTextField jt1 = new JTextField();JLabel lab1 = new JLabel("查找年龄相近的：");JTextField jt2 = new JTextField();JLabel lab2 = new JLabel("输入你的身份证号码：");JTextField jt3 = new JTextField();JButton jButton2 = new JButton("退出");jButton.setBounds(110, 90, 40, 50);jButton1.setBounds(110, 90, 40, 50);jt1.setBounds(110, 90, 40, 50);jt2.setBounds(110, 90, 40, 50);jt3.setBounds(110, 90, 40, 50);jButton2.setBounds(110, 90, 40, 50);jButton.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {Collections.sort(personlist);jt.setText(personlist.toString());}});jButton1.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {int max = 0, min = 100;int j, k1 = 0, k2 = 0;for (int i = 1; i < personlist.size(); i++) {j = personlist.get(i).getage();if (j > max) {max = j;k1 = i;}if (j < min) {min = j;k2 = i;}}jt.setText("年龄最大：" + personlist.get(k1) + "年龄最小：" + personlist.get(k2));}});jButton2.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {dispose();System.exit(0);}});jt1.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {String find = jt1.getText();String text = "";String place = find.substring(0, 3);for (int i = 0; i < personlist.size(); i++) {if (personlist.get(i).getbirthplace().substring(1, 4).equals(place)) {text += "\n" + personlist.get(i);jt.setText("老乡：" + text);}}}});jt2.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {String yourage = jt2.getText();int a = Integer.parseInt(yourage);int near = agenear(a);int value = a - personlist.get(near).getage();jt.setText("年龄相近：" + personlist.get(near));}});jt3.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {list = new ArrayList<>();Collections.sort(personlist);String key = jt3.getText();for (int i = 1; i < personlist.size(); i++) {if (personlist.get(i).getID().contains(key)) {list.add(personlist.get(i));jt.setText("你可能是：\n" + list);}}}});buttonPanel.add(jButton);buttonPanel.add(jButton1);buttonPanel.add(lab);buttonPanel.add(jt1);buttonPanel.add(lab1);buttonPanel.add(jt2);buttonPanel.add(lab2);buttonPanel.add(jt3);buttonPanel.add(jButton2);add(buttonPanel, BorderLayout.SOUTH);setSize(DEFAULT_WIDTH, DEFAULT_HEIGHT);}public static int agenear(int age) {int min = 53, value = 0, k = 0;for (int i = 0; i < personlist.size(); i++) {value = personlist.get(i).getage() - age;if (value < 0)value = -value;if (value < min) {min = value;k = i;}}return k;}}

package math;import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Toolkit;import javax.swing.JFrame;public class math {public static void main(String args[]) {Toolkit t = Toolkit.getDefaultToolkit();Dimension s = t.getScreenSize();EventQueue.invokeLater(() -> {JFrame frame = new main();frame.setBounds(0, 0, (int) s.getWidth() / 2, (int) s.getHeight() / 2);frame.setTitle("算术测试");frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);frame.setVisible(true);});}}

package math;import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.FileNotFoundException;
import java.io.PrintWriter;
import java.util.Collections;
import java.util.Scanner;import javax.swing.*;import java.math.*;public class main extends JFrame {private String[] c = new String[10];private String[] c1 = new String[10];private int[] list = new int[10];int i = 0, i1 = 0, sum = 0;private PrintWriter out = null;private JTextArea text, text1;private int counter;public main() {JPanel Panel = new JPanel();Panel.setLayout(null);JLabel JLabel1 = new JLabel("");JLabel1.setBounds(500, 800, 400, 30);JLabel1.setFont(new Font("Courier", Font.PLAIN, 20));JButton Button = new JButton("生成题目");Button.setBounds(50, 150, 150, 50);Button.setFont(new Font("Courier", Font.PLAIN, 20));Button.addActionListener(new Action());JButton Button2 = new JButton("确定答案");Button2.setBounds(300, 150, 150, 50);Button2.setFont(new Font("Courier", Font.PLAIN, 20));Button2.addActionListener(new Action1());JButton Button3 = new JButton("读出文件");Button3.setBounds(500, 150, 150, 50);Button3.setFont(new Font("Courier", Font.PLAIN, 20));Button3.addActionListener(new Action2());text = new JTextArea(30, 80);text.setBounds(30, 50, 200, 50);text.setFont(new Font("Courier", Font.PLAIN, 30));text1 = new JTextArea(30, 80);text1.setBounds(270, 50, 200, 50);text1.setFont(new Font("Courier", Font.PLAIN, 30));Panel.add(text);Panel.add(text1);Panel.add(Button);Panel.add(Button2);Panel.add(Button3);Panel.add(JLabel1);add(Panel);}private class Action implements ActionListener {public void actionPerformed(ActionEvent event) {text1.setText("");if (i <= 10) {int a = (int) Math.round(Math.random() * 100);int b = (int) Math.round(Math.random() * 100);int m = (int) Math.round(Math.random() * 3);switch (m) {case 0:while (a % b != 0) {a = (int) Math.round(Math.random() * 100);}while (b == 0) {b = (int) Math.round(Math.random() * 100);}c[i] = (i + ":" + a + "/" + b + "=");list[i] = Math.floorDiv(a, b);text.setText(i + ":" + a + "/" + b + "=");i++;break;case 1:c[i] = (i + ":" + a + "*" + b + "=");list[i] = Math.multiplyExact(a, b);text.setText(i + ":" + a + "*" + b + "=");i++;break;case 2:c[i] = (i + ":" + a + "+" + b + "=");list[i] = Math.addExact(a, b);text.setText(i + ":" + a + "+" + b + "=");i++;break;case 3:while (a < b) {b = (int) Math.round(Math.random() * 100);a = (int) Math.round(Math.random() * 100);}c[i] = (i + ":" + a + "-" + b + "=");text.setText(i + ":" + a + "-" + b + "=");list[i] = Math.subtractExact(a, b);i++;break;}}}}private class Action1 implements ActionListener {public void actionPerformed(ActionEvent event) {if (i < 10) {text.setText(null);String z = text1.getText().toString().trim();int a = Integer.parseInt(z);if (text1.getText() != "") {if (list[i1] == a)sum += 10;}c1[i1] = z;i1++;}}}private class Action2 implements ActionListener {public void actionPerformed(ActionEvent event) {try {out = new PrintWriter("text.txt");} catch (FileNotFoundException e) {// TODO Auto-generated catch block
                e.printStackTrace();}for (int counter = 0; counter < 10; counter++) {out.println(c[counter] + c1[counter]);}out.println("成绩" + sum);out.close();}}
}