[Java]NullPointerException()のサンプル

2013年6月22日2021年6月9日

書式
throw new NullPointerException()
使用例

static public void deleteUserGroup(Connection conn, String userid) throws SQLException {

if (conn == null || id == null) {

throw new NullPointerException();

}

//some code

}

static public void deleteUserGroup(Connection conn, String userid) throws SQLException { if (conn == null || id == null) { throw new NullPointerException(); } //some code }

static public void deleteUserGroup(Connection conn, String userid) throws SQLException {
   if (conn == null || id == null) {
         throw new NullPointerException();
   }
   //some code
   }

Java

Posted by arkgame

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