两种方法都很简单本质上没有什么区别，第二种方法就是代码量少点，三大运营商的电话号码前三位都是固定的，剩余的八位都是随机。最终生成出来的号码都是三大运营商可用的号码，下一篇文章是从数据文件里面提取处理每个用户在网站上面的上传、下载、和总流量的数据。
1、
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Random;
import java.util.Scanner;
public class Phone {
//移动电话号码前三位
public static final String[] YD={
"134","135","136",
"137","138","139",
"150","151","152",
"157","158","159",
"180","181","182",
"183","184","185",
"174","192","178",
};
//电信号码前三位
public static final String[] DX = {
"133","149","153",
"173","177","180",
"181","189","199"
};
//联通号码前三位
public static final String[] LT ={
"130","131","132",
"145","155","156",
"166","171","175",
"176","185","186","166"
};
public static void main(String[] args) {
try {
writer();
} catch (IOException e) {
e.printStackTrace();
}
}
public static void writer() throws IOException {
FileOutputStream fos = new FileOutputStream(new File("F:\\phone2.txt"));
Scanner scanner = new Scanner(System.in);
int count = 0;
while (true){
//写入移动
fos.write(scyYD().toString().getBytes());
//写入分隔符
fos.write("\t".getBytes());
//写入电信
fos.write(scyDX().toString().getBytes());
//写入分隔符
fos.write("\t".getBytes());
//写入联通
fos.write(scyLT().toString().getBytes());
//写入分隔符
fos.write("\t".getBytes());
//累加计数
count ++;
//判断是否换行
if (count %3 == 0){
//每1000行暂停，输入q+enter结束 ，其他任意字母继续执行
if (count%1000==0){
String next = scanner.next();
if (next.equals("q")) {
//关闭退出循环
fos.close();
break;
}
}
//每行9个电话号码换行
fos.write("\n".getBytes());
System.out.println("a");
}else {
fos.write("\t".getBytes());
}
}
}
public static StringBuilder scyYD(){
//定义随机数
Random random = new Random();
//从移动号码规则里面随机一个号码前三位
int i = random.nextInt(YD.length);
//随机号码的第4位数字
int i1 = random.nextInt(10);
//随机号码的第5位数字
int i2 = random.nextInt(10);
//随机号码的第6位数字
int i3 = random.nextInt(10);
//随机号码的第7位数字
int i4 = random.nextInt(10);
//随机号码的第8位数字
int i5 = random.nextInt(10);
//随机号码的第9位数字
int i6 = random.nextInt(10);
//随机号码的第10位数字
int i7 = random.nextInt(10);
//随机号码的第11位数字
int i8 = random.nextInt(10);
StringBuilder stringBuilder = new StringBuilder();
stringBuilder.append(YD[i]).append(i1).append(i2).append(i3).append(i4).append(i5).append(i6).append(i7).append(i8);
return stringBuilder;
}
//生成电信号码
public static StringBuilder scyDX(){
//定义随机数
Random random = new Random();
//从电信号码规则里面随机一个号码前三位
int i = random.nextInt(DX.length);
//随机号码的第4位数字
int i1 = random.nextInt(10);
//随机号码的第5位数字
int i2 = random.nextInt(10);
//随机号码的第6位数字
int i3 = random.nextInt(10);
//随机号码的第7位数字
int i4 = random.nextInt(10);
//随机号码的第8位数字
int i5 = random.nextInt(10);
//随机号码的第9位数字
int i6 = random.nextInt(10);
//随机号码的第10位数字
int i7 = random.nextInt(10);
//随机号码的第11位数字
int i8 = random.nextInt(10);
StringBuilder stringBuilder = new StringBuilder();
stringBuilder.append(DX[i]).append(i1).append(i2).append(i3).append(i4).append(i5).append(i6).append(i7).append(i8);
return stringBuilder;
}
//生成联通号码
public static StringBuilder scyLT(){
//定义随机数
Random random = new Random();
//从移动号码规则里面随机一个号码前三位
int i = random.nextInt(LT.length);
//随机号码的第4位数字
int i1 = random.nextInt(10);
//随机号码的第5位数字
int i2 = random.nextInt(10);
//随机号码的第6位数字
int i3 = random.nextInt(10);
//随机号码的第7位数字
int i4 = random.nextInt(10);
//随机号码的第8位数字
int i5 = random.nextInt(10);
//随机号码的第9位数字
int i6 = random.nextInt(10);
//随机号码的第10位数字
int i7 = random.nextInt(10);
//随机号码的第11位数字
int i8 = random.nextInt(10);
StringBuilder stringBuilder = new StringBuilder();
stringBuilder.append(LT[i]).append(i1).append(i2).append(i3).append(i4).append(i5).append(i6).append(i7).append(i8);
return stringBuilder;
}
}2、
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Random;
import java.util.Scanner;
public class Phone2 {
//移动电话号码前三位
public static final String[] YD={
"134","135","136",
"137","138","139",
"150","151","152",
"157","158","159",
"180","181","182",
"183","184","185",
"174","192","178",
};
//电信号码前三位
public static final String[] DX = {
"133","149","153",
"173","177","180",
"181","189","199"
};
//联通号码前三位
public static final String[] LT ={
"130","131","132",
"145","155","156",
"166","171","175",
"176","185","186","166"
};
public static void main(String[] args) {
try {
writer();
} catch (IOException e) {
e.printStackTrace();
}
}
public static void writer() throws IOException {
FileOutputStream fos = new FileOutputStream(new File("F:\\phone9.txt"));
Scanner scanner = new Scanner(System.in);
int count = 0;
while (true){
//写入移动
fos.write(scyall().toString().getBytes());
//累加计数
count ++;
//判断是否换行
if (count %3 == 0){
if (count%1000==0){
String next = scanner.next();
if (next.equals("q")) {
fos.close();
System.out.println(count);
break;
}
}
//每行9个电话号码换行
fos.write("\n".getBytes());
System.out.println("a");
}else {
fos.write("\t".getBytes());
}
}
}
public static StringBuilder scyall(){
//定义随机数
Random random = new Random();
//从移动号码规则里面随机一个号码前三位
int i = random.nextInt(YD.length);
int n = random.nextInt(LT.length);
int w = random.nextInt(DX.length);
//随机号码的第4位数字
int i1 = random.nextInt(10);
//随机号码的第5位数字
int i2 = random.nextInt(10);
//随机号码的第6位数字
int i3 = random.nextInt(10);
//随机号码的第7位数字
int i4 = random.nextInt(10);
//随机号码的第8位数字
int i5 = random.nextInt(10);
//随机号码的第9位数字
int i6 = random.nextInt(10);
//随机号码的第10位数字
int i7 = random.nextInt(10);
//随机号码的第11位数字
int i8 = random.nextInt(10);
StringBuilder stringBuilder = new StringBuilder();
stringBuilder.append(YD[i]).append(i1).append(i2).append(i3).append(i4).append(i5).append(i6).append(i7).append(i8).append("\t");
stringBuilder.append(DX[w]).append(i1).append(i2).append(i3).append(i4).append(i5).append(i6).append(i7).append(i8).append("\t");
stringBuilder.append(LT[n]).append(i1).append(i2).append(i3).append(i4).append(i5).append(i6).append(i7).append(i8);
return stringBuilder;
}
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