randomtest.java

是用来生成测试数据的类

package Random;
import java.util.Random;

public class RandomTest {

	/**
	 * 	RandomTest类用于生成随机乱字符及随机数字．
	 * 	@author shif
	 */
	public String getRandInt(int iIntLength)
	{
		String strNum="";
		Random   rand   =   new   Random();   
		for(int i=0;i<iIntLength;i++)
		{
			int num=rand.nextInt(9)+1;
			strNum+=num;
		}
		return strNum; 
	}
	
	public String getRandomString(int iLetterLength)
	{
		String strLetter="";
		Random rand=new Random();
		for(int i=0;i<iLetterLength;i++)
		{
			int letter=rand.nextInt(61)+1;
			strLetter+=(char)letter;
		}
		return strLetter;
	}
	
	public static void main(String args[])
	{
		RandomTest test=new RandomTest();
		System.out.println("随机生成乱字符"+test.getRandomString(20));
		System.out.println("随机生成的数字："+test.getRandInt(20));
	}
}