Java写的查找重复电话号码程序

核心提示：开发工具：Netbeans 4.1 说明： 此程序大体流程 1，打开一个含有多个重复记录的电话号码的文件，Java写的查找重复电话号码程序， 2，系统按行读取文件并添加到向量vectors中，则添加到数组二，否则跳过，注重此时将电话号码转为LONG型， 3

开发工具：Netbeans 4.1

说明：

此程序大体流程

1。打开一个含有多个重复记录的电话号码的文件。

2。系统按行读取文件并添加到向量vectors中，注重此时将电话号码转为LONG型。

3。新建一个LONG型数组，大小为vectors.size。并将vectors数据复制到这个数组中。

4。对上面的数组进行排序。

5。新建一个LONG型数组二，大小为vectors.size。

6。循环遍历数组一，并对比是否数组二中已有数据，如没有，则添加到数组二，否则跳过。

测试一万条记录的执行时间为不到2S。

/*

* Main.java

*

* Created on 2006年2月13日, 下午2:07

*/

package phoneutil;

import java.awt.*;

import java.awt.event.*;

import java.io.*;

import java.util.*;

import javax.swing.*;

/**

*

* @author http://www.tot.name

*/

public class Main extends javax.swing.JFrame {

PRivate Vector vectors=new Vector();

Long[] resultArr=null;

/** Creates new form Main */

public Main() {

initComponents();

this.setSize(405,400);

this.setTitle("电话号码查询");

this.setResizable(false);

}

/** This method is called from within the constrUCtor to

* initialize the form.

* WARNING: Do NOT modify this code. The content of this method is

* always regenerated by the Form Editor.

*/

// //GEN-BEGIN:initComponents

private void initComponents() {

jFileChooser1 =new JFileChooser();

desktopPane = new javax.swing.JDesktopPane();

jPanel1 = new javax.swing.JPanel();

jScrollPane1 = new javax.swing.JScrollPane();

jScrollPane2 = new javax.swing.JScrollPane();

jTextArea1 = new javax.swing.JTextArea();

jTextArea2 = new javax.swing.JTextArea();

menuBar = new javax.swing.JMenuBar();

fileMenu = new javax.swing.JMenu();

openMenuItem = new javax.swing.JMenuItem();

saveMenuItem = new javax.swing.JMenuItem();

saveAsMenuItem = new javax.swing.JMenuItem();

exitMenuItem = new javax.swing.JMenuItem();

editMenu = new javax.swing.JMenu();

cutMenuItem = new javax.swing.JMenuItem();

copyMenuItem = new javax.swing.JMenuItem();

pasteMenuItem = new javax.swing.JMenuItem();

deleteMenuItem = new javax.swing.JMenuItem();

helpMenu = new javax.swing.JMenu();

contentMenuItem = new javax.swing.JMenuItem();

aboutMenuItem = new javax.swing.JMenuItem();

setDefaultCloSEOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

jPanel1.setLayout(new java.awt.BorderLayout());

jTextArea1.setColumns(35);

jTextArea1.setRows(15);

jTextArea1.setTabSize(4);

jScrollPane1.setViewportView(jTextArea1);

jPanel1.add(jScrollPane1, java.awt.BorderLayout.CENTER);

jTextArea2.setColumns(35);

jTextArea2.setRows(5);

jScrollPane2.setViewportView(jTextArea2);

jPanel1.add(jScrollPane2, java.awt.BorderLayout.SOUTH);

jPanel1.setBounds(0, 0, 400, 280);

desktopPane.add(jPanel1, javax.swing.JLayeredPane.DEFAULT_LAYER);

getContentPane().add(desktopPane, java.awt.BorderLayout.CENTER);

fileMenu.setText("文件");

fileMenu.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

fileMenuActionPerformed(evt);

}

});

openMenuItem.setText("打开");

openMenuItem.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

openMenuItemActionPerformed(evt);

}

});

fileMenu.add(openMenuItem);

saveMenuItem.setText("保存");

saveMenuItem.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

saveMenuItemActionPerformed(evt);

}

});

fileMenu.add(saveMenuItem);

//saveAsMenuItem.setText("Save As ...");

//fileMenu.add(saveAsMenuItem);

exitMenuItem.setText("Exit");

exitMenuItem.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

exitMenuItemActionPerformed(evt);

}

});

fileMenu.add(exitMenuItem);

menuBar.add(fileMenu);

editMenu.setText("Edit");

cutMenuItem.setText("Cut");

editMenu.add(cutMenuItem);

copyMenuItem.setText("Copy");

editMenu.add(copyMenuItem);

pasteMenuItem.setText("Paste");

editMenu.add(pasteMenuItem);

deleteMenuItem.setText("Delete");

editMenu.add(deleteMenuItem);

menuBar.add(editMenu);

helpMenu.setText("Help");

contentMenuItem.setText("Contents");

helpMenu.add(contentMenuItem);

aboutMenuItem.setText("About");

aboutMenuItem.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

aboutMenuItemActionPerformed(evt);

}

});

helpMenu.add(aboutMenuItem);

menuBar.add(helpMenu);

setJMenuBar(menuBar);

pack();

}

// //GEN-END:initComponents

private void aboutMenuItemActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_aboutMenuItemActionPerformed

// TODO 将在此处添加您的处理代码：

JOptionPane.showMessageDialog(null,"Find Phone Num by repeated.","关于",JOptionPane.WARNING_MESSAGE);

}//GEN-LAST:event_aboutMenuItemActionPerformed

private void openMenuItemActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_openMenuItemActionPerformed

String strFileOpen="";

String lineStr=null;

String returnStr=null;

StringBuffer sbf=new StringBuffer();

StringBuffer bf2=new StringBuffer();

Long[] intArr=null;

//jFileChooser1 =new JFileChooser();

try{

if(this.jFileChooser1.APPROVE_OPTION==this.jFileChooser1.showOpenDialog(this)){

strFileOpen=this.jFileChooser1.getSelectedFile().getPath();

this.setTitle(strFileOpen);

try{

File files=new File(strFileOpen.toString());

vectors.removeAllElements();

InputStreamReader read =new InputStreamReader(new FileInputStream(files),"gb2312");

//BufferedReader br=new BufferedReader(new FileReader(filepath.toString()));

BufferedReader br=new BufferedReader(read);

while((lineStr=br.readLine())!=null){

//returnStr=returnStr+line+"\n\r";

//line=br.readLine();

//处理字符并添加到向量中

vectors.add(new Long(lineStr));

//sbf.append("\n\r");

}

intArr=new Long[vectors.size()];

resultArr=new Long[vectors.size()];

vectors.copyInto(intArr);

Arrays.sort(intArr);

int startIndex=1;

resultArr[0]=intArr[0];

//System.out.println(resultArr[0]+":"+intArr[0]);

for(int j=1;j

//System.out.println(resultArr[startIndex-1]+":"+intArr[j]);

if(resultArr[startIndex-1].compareTo(intArr[j])==0){

bf2.append(intArr[j]+"\n\r");

}

else{

sbf.append(intArr[j]+"\n\r");

resultArr[startIndex]=intArr[j];

startIndex++;

}

//startIndex++;

}

jTextArea1.setText("处理后的结果为：\n\r"+sbf.toString());

jTextArea2.setText("重复的电话号码有：\n\r"+bf2.toString());

}

catch(IOException e){

System.out.println("file open error"+e.getMessage());

}

//this.statubar.setText("Open File:"+this.filename);

}

else

{

return ;

}

}

catch(Exception e){

//this.statubar.setText("Error Open:"+e.getMessage());

}

}//GEN-LAST:event_openMenuItemActionPerformed

private void saveMenuItemActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_openMenuItemActionPerformed

File fileName=null;

String strFileOpen=null;

PrintWriter output=null;

try{

if(this.jFileChooser1.APPROVE_OPTION==this.jFileChooser1.showSaveDialog(this)){

strFileOpen=this.jFileChooser1.getSelectedFile().getPath();

this.setTitle(strFileOpen);

fileName = jFileChooser1.getSelectedFile();

this.setTitle("保存至:"+fileName.getName());

try{

output = new PrintWriter(fileName);

for(int i=0;i

if(resultArr[i]!=null){

output.write(resultArr[i]+"\r\n");

}

}

jTextArea1.setText("成功保存至:\n\r"+strFileOpen);

}

catch(IOException e){

}

finally{

output.close();

output = null;

}

}

}

catch(Exception e){

}

}

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//GEN-LAST:event_openMenuItemActionPerformed

private void fileMenuActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_fileMenuActionPerformed

// TODO 将在此处添加您的处理代码：

}//GEN-LAST:event_fileMenuActionPerformed

private void exitMenuItemActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_exitMenuItemActionPerformed

System.exit(0);

}//GEN-LAST:event_exitMenuItemActionPerformed

//交换位置

private void swap(int loc1, int loc2){

Object tmp = vectors.elementAt(loc1);

vectors.setElementAt(vectors.elementAt(loc2),loc1);

vectors.setElementAt(tmp,loc2);

}

/**

* @param args the command line arguments

*/

public static void main(String args[]) {

java.awt.EventQueue.invokeLater(new Runnable() {

public void run() {

new Main().setVisible(true);

}

});

}

private javax.swing.JFileChooser jFileChooser1;

// 变量声明 - 不进行修改//GEN-BEGIN:variables

protected javax.swing.JMenuItem aboutMenuItem;

protected javax.swing.JMenuItem contentMenuItem;

protected javax.swing.JMenuItem copyMenuItem;

protected javax.swing.JMenuItem cutMenuItem;

protected javax.swing.JMenuItem deleteMenuItem;

protected javax.swing.JDesktopPane desktopPane;

protected javax.swing.JMenu editMenu;

protected javax.swing.JMenuItem exitMenuItem;

protected javax.swing.JMenu fileMenu;

protected javax.swing.JMenu helpMenu;

protected javax.swing.JPanel jPanel1;

protected javax.swing.JScrollPane jScrollPane1;

protected javax.swing.JScrollPane jScrollPane2;

protected javax.swing.JTextArea jTextArea1;

protected javax.swing.JTextArea jTextArea2;

protected javax.swing.JMenuBar menuBar;

protected javax.swing.JMenuItem openMenuItem;

protected javax.swing.JMenuItem pasteMenuItem;

protected javax.swing.JMenuItem saveAsMenuItem;

protected javax.swing.JMenuItem saveMenuItem;

// 变量声明结束//GEN-END:variables

}

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