异常

异常

package error;
​
public class Test {
    public static void main(String[] args) {
        int a=1,b=0;
        try {
            System.out.println(a/b);
        } catch (Exception e) {
            System.out.println("除数为0");
        } catch(Throwable e){
            System.out.println("出错");
        }
        finally {
            System.out.println("善后");
        }
    }
}

自定义异常

package error;
​
public class Test2 {
    static void demo(int a) throws MyException{
        System.out.println("传递的数为："+a);
        if (a>10){
            throw new MyException(a);
        }
    }
​
    public static void main(String[] args) {
        try {
            demo(11);
        } catch (MyException e) {
            System.out.println("123\t"+e);
        } finally {
        }
    }
}

package error;
​
public class MyException extends Exception{
    private int a;
    public MyException(int a){
        this.a=a;
    }
​
    @Override
    public String toString() {
        return "MyException{" +
                "a=" + a +
                '}';
    }
}

 

标签：int,MyException,System,println,异常,public,out
来源： https://www.cnblogs.com/Gc-mosi/p/15382844.html