Question: If user input is inserted without modification into an SQL query, then the application becomes vulnerable to SQL injection, like in the following example: $unsafe_variable = $_POST[‘user_input’]; mysql_query(“INSERT INTO `table` (`column`) VALUES (‘$unsafe_variable’)”); That’s because the user can input something …
Question: What are Null Pointer Exceptions (java.lang.NullPointerException)? How do I determine the cause? I want to stop the exception from causing the program to terminate prematurely. Answer: NullPointerException occurs when you use a reference that points to no location in …
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When was the last time you read a book, or a substantial magazine article? Do your daily reading habits center around tweets, Facebook updates, or the directions on your instant oatmeal packet? If you’re one of countless people who don’t …
Science confirms what we all knew, deep down: after a long, hard day at work, doing something fun and relaxing can help you sleep better at night. Sometimes, something just feels right. Like when you have a bad day at …
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