throws is to throw an exception and subsequent code will not be executed. And try...catch throws the exception and continues to execute the following code.
package com.oracle; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; public class Demo01Exception { /*Exception：编译期间异常，进行编译（写代码的过程） * runtimeException:运行期异常，java程序运行过程中出现的问题 *Error:错误(出现的错误无法调试，必须修改源代码) * */ public static void main(String[] args){ //*Exception：编译期间异常，进行编译（写代码的过程） SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");//格式化日期对象。 Date date =null; try { date = sdf.parse("1999-0909"); } catch (ParseException e) { // TODO Auto-generated catch block e.printStackTrace(); }//把字符串格式的日期，解析为Date格式日期 System.out.println(date); System.out.println("kkkkk"); } }
Execution results: (Recommended learning:java video tutorial)
java.text.ParseException: Unparseable date: "1999-0909"（无法解释的错误。） at java.text.DateFormat.parse(DateFormat.java:357) at com.oracle.Demo01Exception.main(Demo01Exception.java:18) null kkkkk
import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; public class Demo01Exception { /*Exception：编译期间异常，进行编译（写代码的过程） * runtimeException:运行期异常，java程序运行过程中出现的问题 *Error:错误(出现的错误无法调试，必须修改源代码) * */ public static void main(String[] args) throws ParseException{ //*Exception：编译期间异常，进行编译（写代码的过程） SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");//格式化日期对象。 Date date =null; date = sdf.parse("1999-0909"); //把字符串格式的日期，解析为Date格式日期 System.out.println(date); System.out.println("kkkkk"); } }
Exception in thread "main" java.text.ParseException: Unparseable date: "1999-0909" at java.text.DateFormat.parse(DateFormat.java:357) at com.oracle.Demo01Exception.main(Demo01Exception.java:17)
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