标签:blog class 参考 结果 代码 article string cep 种类
public class TestInfo {
????private static String str =null;
????public static void main(String[] args) {
????????System.out.println("test exception");
????????try {
????????????if(str.equals("name")){
????????????????System.out.println("test exception");
????????????}
????????} catch (Exception e) {
????????????System.out.println(e.toString());
????????????System.out.println(e.getMessage());
????????}
????}
}
java.lang.NullPointerException
null
public class TestInfo {
????private static int m = 0;
????public static void main(String[] args) {
????????System.out.println("test exception");
????????try {
????????????m = 899/0;
????????} catch (Exception e) {
????????????System.out.println(e.toString());
????????????System.out.println(e.getMessage());
????????}
????}
}
java.lang.ArithmeticException: / by zero
/ by zero
e.toString()
:? 获得异常种类和错误信息e.getMessage()
:获得错误信息e.printStackTrace()
:在控制台打印出异常种类,错误信息和出错位置等【JAVA】Java 异常中e的getMessage()和toString()方法的异同
标签:blog class 参考 结果 代码 article string cep 种类
原文地址:https://www.cnblogs.com/anliux/p/11644279.html