·throws關鍵字主要用於方法宣告上，指的是當前方法之中異常後交給被呼叫處處理；

範例1：

class MyMath {
	public static int div(int x, int y) throws Exception {
		return x / y;
	}
}

public class Test {
	public static void main(String[] args) {
		try {
			System.out.println("計算結果："+MyMath.div(10, 2));
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}
 

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範例2：

class MyMath {
	public static int div(int x, int y) throws Exception {
		return x / y;
	}
}

public class Test {
	public static void main(String[] args) throws Exception {
		System.out.println("計算結果：" + MyMath.div(10, 2));
	}
}