java异常类
//StackOverflowError 栈溢出 // FileNotFoundExceptoin 文件没找到异常 //ArithmeticException 算术异常 System.out.println(10 / 0); //ClassCastException 类型转换异常 Object obj = "abc"; Integer i = (Integer)obj; // InputMismatchException 输入不匹配异常 Scanner sc = new Scanner(System.in); int val = sc.nextInt(); System.out.println(val); // NumberFormatException 数字格式异常 //String s = "123a"; String s = "123"; Integer in = Integer.parseInt(s); System.out.println(in); // IndexOutOfBoundsException 下标越界异常 int[] arr = new int[3]; System.out.println(arr[0]); System.out.println(arr[2]); System.out.println(arr[3]);自定义异常类
package com.exception; /** * 自定义异常类——运行时异常 * @title MyExceptioin.java */ public class MyExceptioin extends RuntimeException { private static final long serialVersionUID = 6379053527480024671L; public MyExceptioin() { super(); } public MyExceptioin(String message) { super(message); } }