随机生成20个15位长度的数字

import java.util.Random;

public class GeneratorUUIDTest {
    
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		Random random = new Random(System.currentTimeMillis());
		for (int j=0;j<20;j++){
			String uuid = "";
			for (int i=0;i<15;i++){
				int subNum = random.nextInt(9);
				uuid+=subNum;
			}
			System.out.println(uuid);
		}
	}

}import java.util.Random;

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