物理网络设计是什么/汕头百度seo公司

package Contacts;import java.io.*;/*** Created by Yifan Jia on 2018/6/10.*/
public class FileRW {private static FileWriter fileWriter;private static FileReader fileReader;private static BufferedReader bf;private static BufferedWriter bw;private static File file = new File("D:dest.txt");public static void fileWrite(String s) {try {fileWriter = new FileWriter(file, true);bw = new BufferedWriter(fileWriter);bw.write(s);} catch (IOException e) {e.printStackTrace();} finally {try {bw.close();fileWriter.close();} catch (IOException e) {e.printStackTrace();}}}public static String fileRead(String dest) {try {fileReader = new FileReader(file);bf = new BufferedReader(fileReader);String ss;while((ss = bf.readLine()) != null) {String[] temp = ss.split(",");if(temp[0].equals(dest)) {return ss;}}} catch (FileNotFoundException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();} finally {try {bf.close();fileReader.close();} catch (IOException e) {e.printStackTrace();}}return null;}
}

package Contacts;import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;//定义自已的MyPanel，用于实现画图
class MyPanelone extends JPanel {private String ss;private int x;private int y;private int size;public MyPanelone(String ss, int x, int y, int size) {this.ss = ss;this.x = x;this.y = y;this.size = size;}//覆盖JPanel的paint方法@Overridepublic void paint(Graphics g) {super.paint(g);g.setColor(Color.BLACK);g.setFont(new Font("宋体", Font.BOLD, size));g.drawString(ss, x, y);}
}public class MyContacts extends JFrame{private MyPanelone myPaneone;private JPanel[] jPanels = new JPanel[7];private JButton[] jButtons = new JButton[4];private JTextField[] jTextFields = new JTextField[6];private JLabel[] jLabels = new JLabel[6];private String[] texts = new String[6];private class MyActionListener implements ActionListener {@Overridepublic void actionPerformed(ActionEvent e) {boolean flag = true;StringBuilder s = new StringBuilder();String actionCommand = e.getActionCommand();if(actionCommand == "添加") {for (int i = 0; i < 6; i++) {texts[i] = new String();texts[i] = jTextFields[i].getText();//System.out.println(texts[i]);if(texts[i].equals("") || texts[i] == null) {flag = false;break;}if(i == 0) {s.append(texts[i]);}else {s.append(",").append(texts[i]);}}if(flag) {s.append("n");//将文本域中的内容写成一个字符串String ss = s.toString();//将字符串写入文件FileRW.fileWrite(ss);for(int i=0;i<6;i++) {jTextFields[i].setText("");}//System.out.println(ss);JFrame jFrame = new JFrame();jFrame.setBounds(500, 300, 300, 300);MyPanelone myPanelone = new MyPanelone("添加成功", 100, 100, 20);jFrame.add(myPanelone);jFrame.addWindowListener(new WindowAdapter() {@Overridepublic void windowClosing(WindowEvent e) {e.getWindow().dispose();}});jFrame.setVisible(true);}else {JFrame jFrame = new JFrame();jFrame.setBounds(500, 300, 300, 300);MyPanelone myPanelone = new MyPanelone("请把所有内容都填写完整", 60, 100, 15);jFrame.add(myPanelone);jFrame.addWindowListener(new WindowAdapter() {@Overridepublic void windowClosing(WindowEvent e) {e.getWindow().dispose();}});jFrame.setVisible(true);}}else if(actionCommand == "清空") {for(int i=0;i<6;i++) {jTextFields[i].setText("");}}else if(actionCommand == "退出") {System.exit(0);}else if(actionCommand == "查找") {JFrame frame = new JFrame("输入");JPanel jPanel = new JPanel();JPanel jPanel1 = new JPanel();JLabel jLabel = new JLabel("输入查找人的名字");JButton jButton = new JButton("确定");JTextField jTextField = new JTextField(30);jPanel.add(jLabel);jPanel.add(jTextField);jButton.addActionListener(new ActionListener() {@Overridepublic void actionPerformed(ActionEvent e) {String actionCommand1 = e.getActionCommand();String dest = jTextField.getText();String findresult = FileRW.fileRead(dest);if(findresult == null) {for(int i=0;i<6;i++) {jTextFields[i].setText("");}JFrame jFrame = new JFrame();jFrame.setBounds(500, 300, 300, 300);MyPanelone myPanelone = new MyPanelone("未找到该用户", 100, 100, 20);jFrame.add(myPanelone);jFrame.addWindowListener(new WindowAdapter() {@Overridepublic void windowClosing(WindowEvent e) {e.getWindow().dispose();}});jFrame.setVisible(true);frame.dispose();}else {String[] tempdest = findresult.split(",");for(int i=0;i<6;i++) {jTextFields[i].setText(tempdest[i]);}frame.dispose();}}});jPanel1.add(jButton);frame.add(jPanel, BorderLayout.CENTER);frame.add(jPanel1, BorderLayout.SOUTH);frame.setBounds(500, 300, 400, 300);frame.addWindowListener(new WindowAdapter() {@Overridepublic void windowClosing(WindowEvent e) {e.getWindow().dispose();}});frame.setVisible(true);}}}MyContacts() {myPaneone = new MyPanelone("communication", 250, 60, 60);//myPaneone.setSize(1000, 150);this.add(myPaneone);for(int i=0;i<7;i++) {jPanels[i] = new JPanel();}jLabels[0] = new JLabel("姓名");jLabels[1] = new JLabel("邮政编码");jLabels[2] = new JLabel("通信地址");jLabels[3] = new JLabel("电话");jLabels[4] = new JLabel("手机");jLabels[5] = new JLabel("电子邮件");jButtons[0] = new JButton("添加");jButtons[1] = new JButton("查找");jButtons[2] = new JButton("清空");jButtons[3] = new JButton("退出");for(int i=0;i<6;i++) {jTextFields[i] = new JTextField(50);}//设置布局管理this.setLayout(new GridLayout(8, 1));//加入各个组件for(int i=0;i<6;i++) {jPanels[i].add(jLabels[i]);jPanels[i].add(jTextFields[i]);this.add(jPanels[i]);}for(int i=0;i<4;i++) {jButtons[i].addActionListener(new MyActionListener());jPanels[6].add(jButtons[i]);}this.add(jPanels[6]);}public static void main(String[] args) {JFrame f = new MyContacts();f.setTitle(f.getClass().getSimpleName());f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);f.setBounds(400, 200, 1000, 600);f.setVisible(true);}
}