import?java.util.ArrayList;
import?java.util.Collections;
import?java.util.List;
import?java.util.Random;

public?class?CollectionsTest?{
	/**
	?*?隨機生成10個字符串。并對它進行排序。
	?*?
	?*?@param?args
	?*/
	public?void?testSort3()?{
		List<String>?stringList?=?new?ArrayList<String>();
		String?charList?=?"1234567890qwertyuiopasdfghjklzxcvbnm"?+?"QWERTYUIOPASDFGHJKLZXCVBNM";
		int?listLong?=?charList.length();
		Random?random?=?new?Random();
		int?j?=?1;
		while?(j?<=?10)?{
			StringBuffer?tempStrBuf?=?new?StringBuffer();
			for?(int?i?=?0;?i?<?random.nextInt(9)?+?1;?i++)?{
				int?k?=?random.nextInt(listLong);
				tempStrBuf.append(charList.charAt(k));
			}
			String?tempStr?=?tempStrBuf.toString();
			stringList.add(tempStr);
			System.out.println("成功添加字符串：'"?+?tempStr?+?"'");
			j++;
		}
		System.out.println("-----------------排序前--------------");
		for?(String?string?:?stringList)?{
			System.out.println("元素："?+?string);
		}
		Collections.sort(stringList);
		System.out.println("-----------------排序后--------------");
		for?(String?string?:?stringList)?{
			System.out.println("元素："?+?string);
		}
	}
	public?static?void?main(String[]?args)?{
	CollectionsTest?ct?=?new?CollectionsTest();
		ct.testSort3();
	}
}