进阶day05-运行时异常和编译时异常的区别
This commit is contained in:
34
javaSE-day05/src/com/inmind/exception05/Demo08.java
Normal file
34
javaSE-day05/src/com/inmind/exception05/Demo08.java
Normal file
@@ -0,0 +1,34 @@
|
||||
package com.inmind.exception05;
|
||||
/*
|
||||
运行时异常和编译时异常的区别
|
||||
|
||||
运行时异常(RunTimeException及其子类):属于非检查型异常(编译器不检查),无需强制处理,可以通过优化代码逻辑,避免异常
|
||||
|
||||
编译时异常(Exception及其子类,但与RunTimeException无关):属于检查型异常(编译器会检查),在编写阶段可能出现语法问题必须处理。
|
||||
需要程序员预见并处理可能的错误情况,可通过try-catch或throws处理
|
||||
|
||||
总结:编写代码时,编译时异常一定要处理,运行时异常可以处理,也可以不处理
|
||||
|
||||
在一个方法中异常处理的方式有2种:1.真正的处理try-catch 2.交给调用者处理throws
|
||||
*/
|
||||
public class Demo08 {
|
||||
public static void main(String[] args) {
|
||||
try {
|
||||
method2();
|
||||
} catch (Exception e) {
|
||||
System.out.println();
|
||||
} finally {
|
||||
}
|
||||
System.out.println("程序结束");
|
||||
}
|
||||
|
||||
public static void method1() throws Exception {
|
||||
|
||||
throw new Exception();
|
||||
}
|
||||
|
||||
public static void method2() {
|
||||
|
||||
throw new RuntimeException();
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user