Main

···
package edu.xcdq;

public class Main {

public static void main(String[] args) {
    int divisor = 10 ;
    int dividend = 0 ;
    try{
        System.out.println(divisor / dividend);//ArithmeticException    算數(shù)異常
    }catch (Exception e){
        e.printStackTrace();
        System.out.println("捕獲到一個(gè)異常");
    }finally {
        System.out.println("不管怎都會(huì)執(zhí)行這個(gè)代碼");
    }


    System.out.println("哈哈");
}

}

···

Demo01

package edu.xcdq;

import java.util.InputMismatchException;
import java.util.Scanner;

/**
 * @qvthor liuwenzheng
 * @date 2021/4/27 15:07
 */
public class Demo01 {
    public static void main(String[] args) {
        int [] a= new int[2] ;
        Scanner scanner = new Scanner(System.in);
        try {
            int i = scanner.nextInt();
            int j = scanner.nextInt();
            a[0] = i ;
            a[2] = j ;
            System.out.println(a[0]/a[2]);
        }catch (ArrayIndexOutOfBoundsException e){
            System.out.println("數(shù)組越界異常");
        }catch (InputMismatchException e){
            System.out.println("數(shù)據(jù)格式不正確異常");
        }catch (ArithmeticException e){
            System.out.println("算數(shù)異常");
        }
    }
}

Demo02

package edu.xcdq;

import java.util.InputMismatchException;
import java.util.Scanner;

/**
 * @qvthor liuwenzheng
 * @date 2021/4/27 15:15
 */
public class Demo02 {
    public static void main(String[] args) {
            int [] a= new int[2] ;
            Scanner scanner = new Scanner(System.in);
            try {
                int i = scanner.nextInt();
                int j = scanner.nextInt();
                a[0] = i ;
                a[2] = j ;
                System.out.println(a[0]/a[2]);
                // Array Index OutOf Bounds Exception 數(shù)組享怀、索引 超出 邊界 異常
                // Input Mismatch Exception  輸入 不匹配 異常
                // Arithmetic Exception 數(shù)字?jǐn)?shù)字 異常
            }catch (ArrayIndexOutOfBoundsException |InputMismatchException |ArithmeticException e){
                System.out.println("數(shù)組越界異常");

                System.out.println("數(shù)據(jù)格式不正確異常");

                System.out.println("算數(shù)異常");
            }
        }
    }

Demo03

package edu.xcdq;

/**
 * @qvthor liuwenzheng
 * @date 2021/4/27 15:31
 */
public class Demo03 {
    public static void main(String[] args) throws Exception{       //繼續(xù)向上聲明羽峰，不處理
        /*try {
            steSex("雙性人");
        }catch (Exception e){
            e.printStackTrace();
            System.out.println("非男非女");
        }*/
        steSex("afwarf");
    }
    public static void steSex(String sex) throws Exception{  //聲明異常
        if (!(sex.equals("男")|| sex.equals("女"))){
           throw new Exception("處理不了的異常，扔出去");  //拋出異常
        }
    }
}

Demo04

package edu.xcdq;

/**
 * @qvthor liuwenzheng
 * @date 2021/4/27 15:46
 */
public class Demo04 {
    public static void main(String[] args){
        try {
            steSex("雙性人");
        }catch (Exception e){
            System.out.println("調(diào)用者說(shuō)處理過(guò)了");
        }
    }
    public static void steSex(String sex) throws SexException{  //聲明異常
        if (!(sex.equals("男")|| sex.equals("女"))){
            throw new SexException("發(fā)現(xiàn)一個(gè)不對(duì)勁的");  //拋出異常
        }
    }
}

SexException

package edu.xcdq;

/**
 * @qvthor liuwenzheng
 * @date 2021/4/27 15:44
 */
public class SexException extends Exception {
    public SexException(){
    }
    public SexException(String message){
        System.out.println(message);
        System.out.println("自定義的異常添瓷，知道非男飛女梅屉，但是沒(méi)辦法處理");
        System.out.println("..........");
    }
}