判断两个字符串或数组中有没有重复的元素

package cn.test;

public class change {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		String st1="23,344,32";
		String[] result1=st1.split(",");
		String st2="24,23";
		String[] result2=st2.split(",");
		int flag=0;
		for(int i=0;i

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