Exception e中e的getMessage()和toString()方法的区别:
示例代码1:
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());
输出结果:
java.lang.NullPointerException
null
示例代码2:
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());
输出结果:
java.lang.ArithmeticException: / by zero / by zero