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java中产生随机汉字(推荐)

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4e00-9fa5编码范围，这个范围里应该都是中文。。。

引用楼主 hyb2008dxy 的帖子:
java中如何产生一个随机的汉字，不用预存在数组的方式来做的话，有没有其他方法？

答：参考代码如下：

Java code

//在0x4e00---0x9fa5之间产生一个随机的字符publicstaticchargetRandomChar()
    {return(char)(0x4e00+(int)(Math.random()*(0x9fa5-0x4e00+1)));
    }

方法二：

给LZ写了一个,不晓得要得不?
import java.util.Date;
import java.util.Random;

public class Chinese {
public String getChinese(long seed) throws Exception {
String str = null;
int highPos, lowPos;
seed = new Date().getTime();
Random random = new Random(seed);
highPos = (176 + Math.abs(random.nextInt(39)));
lowPos = 161 + Math.abs(random.nextInt(93));
byte[] b = new byte[2];
b[0] = (new Integer(highPos)).byteValue();
b[1] = (new Integer(lowPos)).byteValue();
str = new String(b, "GB2312");
return str;
}

public static String get300Chinese() throws Exception {
Chinese ch = new Chinese();
String str = "";
for (int i = 300; i > 0; i--) {
str = str + ch.getChinese(i);

}
System.out.println(str);
return str;
}

public static void main(String[] args) throws Exception {

get300Chinese();
}
}

方法三：

Java code

publicclassTest1 {publicstaticvoidmain(String[] args) {
        RandomHan han=newRandomHan();
        System.out.println(han.getRandomHan());
    }
}classRandomHan {privateRandom ran=newRandom();privatefinalstaticintdelta=0x9fa5-0x4e00+1;publicchargetRandomHan() {return(char)(0x4e00+ran.nextInt(delta)); 
    }
}

方法四：

import java.util.Date;
import java.util.Random;

public class Chinese {
public String getChinese(long seed) throws Exception {
String str = null;
int highPos, lowPos;
seed = new Date().getTime();
Random random = new Random(seed);
highPos = (176 + Math.abs(random.nextInt(39)));
lowPos = 161 + Math.abs(random.nextInt(93));
byte[] b = new byte[2];
b[0] = (new Integer(highPos)).byteValue();
b[1] = (new Integer(lowPos)).byteValue();
str = new String(b, "GB2312");
return str;
}

public static String get300Chinese() throws Exception {
Chinese ch = new Chinese();
String str = "";
for (int i = 300; i > 0; i--) {
str = str + ch.getChinese(i);

}
System.out.println(str);
return str;
}

public static void main(String[] args) throws Exception {

get300Chinese();
}
}

转自： http：//topic.csdn.net/u/20080507/14/09d90a22-7f46-44ba-9484-d5ca3d3093a4.html

java 随机字母输出到txt文档

2007年03月15日星期四 16:36

import java.io.FileWriter;

public class create {

public static void main(String[] args) {
   char s;
   char k[] = new char[1000];
   double m;
   try{
    for(int i=0;i<1000;i++){
     m = Math.random()*26+97;
     s = (char)m;
     System.out.print(s);
     k[i] = s;
    }
    FileWriter FW = new FileWriter("c:/123.txt");
    FW.write(k);
    FW.close();
   }
   catch(Exception e){
   }
}
}