public?class?HelloWorld?{
????public?static?void?main(String[]?args)?{
		int?age=25;
		if(age>60){
		????System.out.println("老年");
		}
		else?if(age>=40){
		????System.out.println("中年");
		}
		else?if(age>=18){
		????System.out.println("少年");
		}
		else{
		????System.out.println("童年");
		}

	}
}

應該像這樣寫吧？