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- package J20250718.demo02_exception;
- /**
- * @author WanJl
- * @version 1.0
- * @title Demo01
- * @description
- * @create 2025/7/18
- */
- public class Demo01 {
- public static void method666(){
- method666(); //方法调用自身---方法的递归,方法调用自身层数太多就容易出现栈内存溢出错误
- System.out.println("hello......");
- System.out.println("hello......");
- System.out.println("hello......");
- System.out.println("hello......");
- }
- public static void main(String[] args) {
- //异常1-数组下标越界异常
- int[] arr=new int[3];
- //System.out.println(arr[4]); //ArrayIndexOutOfBoundsException
- //异常2-除零异常
- //System.out.println(5/0); //ArithmeticException
- //异常3-类型转换异常
- //Fu f=new Zi1();
- //Zi2 z2=(Zi2) f; //ClassCastException
- //int[] arr2=new int[1024*1024*1024]; //OutOfMemoryError
- method666(); //StackOverflowError
- }
- }
- class Fu{
- }
- class Zi1 extends Fu{
- }
- class Zi2 extends Fu{
- }
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