异常捕获 try catch

 

 加上异常捕获

 

如果不打印异常信息

 

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关于多层异常嵌套捕捉

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package com.zyq.test1;     import com.sun.media.jfxmedia.logging.Logger; import org.apache.poi.ss.formula.functions.T;   import java.util.Collections; import java.util.HashMap; import java.util.Map;   public class Test {       public static void main(String[] args) {         try {             System.out.println("今天的天气很冷呀！！！");         } catch (Exception e) {             System.err.println("错误："+e);         } finally {             try {                 int a=1/0;             } catch (Exception ex) {                 System.err.println("出错啦！"+ex);             }         }     } }

　　

运行结果：

今天的天气很冷呀！！！
出错啦！java.lang.ArithmeticException: / by zero

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package com.zyq.test1;     import com.sun.media.jfxmedia.logging.Logger; import org.apache.poi.ss.formula.functions.T;   import java.util.Collections; import java.util.HashMap; import java.util.Map;   public class Test {       public static void main(String[] args) {         try {             System.out.println("今天的天气很冷呀！！！");             int b=1/0;         } catch (Exception e) {             System.err.println("错误："+e);         } finally {             try {                 int a=1/0;             } catch (Exception ex) {                 System.err.println("出错啦！"+ex);             }         }     } }

　　

运行结果：

今天的天气很冷呀！！！
错误：java.lang.ArithmeticException: / by zero
出错啦！java.lang.ArithmeticException: / by zero