Question

java怎么随机抽取多个不重复的字符串数据

java怎么随机抽取多个不重复的字符串数据java怎么随机抽取多个不重复的字符串，不是抽取一个是多个字符串，

Answer 1

public class Test1 {
	public static void main(String[] args){
		String[] scc={"a","b","c","d","e","f","g","h","ddd"};
		Random ran=new Random();
		int i=scc.length;
		int count=0;
		StringBuilder sb=new StringBuilder();
		while(true){
			String s=scc[ran.nextInt(i)];
			if(sb.indexOf(s)==-1){
				sb.append(s);
				count++;    
				System.out.println("第 "+count+" 次抽到 "+s);
			}
			if(count==5){	
				break;
			}
		}
	}	
}