public?class?HelloWorld?{
????public?static?void?main(String[]?args)?{
????????
		//?定義一個長度為5的字符串數(shù)組，保存考試科目信息
		String[]?subjects?=?{"5","4","3","2","1"};???????????????????
????????
		//?分別為數(shù)組中的元素賦值
		subjects[0]?=?"Oracle";
		subjects[1]?=?"PHP";
		subjects[2]?=?"Linux";
		subjects[3]?=?"Java";
		subjects[4]?=?"HTML";
????????
		System.out.println("數(shù)組中第4個科目為："?+?subjects[3]);
	}
}