div的异常抛给main来处理：

class Math{
    public int div(int i,int j)throws Exception{
        int temp=i/j;
        return temp;
    }
}
public class ThrowsDemo01 {
public static void main(String[] args){
    Math m=new Math();
        try {
            System.out.println("Divation opration: "+m.div(10, 0));
        } catch (Exception e) {
            e.printStackTrace();
        }
}
}