package prepare1;
class MyMath {
static int result;// 想要不加static,就要一开始就给result赋一个值
public static int div(int a, int b) {
System.out.println("=====计算开始=====");
try {
result = a / b;
} catch (Exception e) {
System.out.println("请检查输入的数字");
throw e;// 把这个异常抛给主方法
} finally {
System.out.println("=====计算结束=====");
}
return result;
}
}
public class Test {
public static void main(String args[]) {
try {
System.out.println(MyMath.div(10, 2));
} catch (Exception e) {
e.printStackTrace();
}
}
}