How do I use StringUtils in Java?

java.lang does not contain a class called StringUtils. Several third-party libs do, such as Apache Commons Lang or the Spring framework. Make sure you have the relevant jar in your project classpath and import the correct class.

What is object serialization?

Serialization is the conversion of an object to a series of bytes, so that the object can be easily saved to persistent storage or streamed across a communication link. The byte stream can then be deserialized – converted into a replica of the original object.

How to get Java to wait for user Input

There is no need for you to check for available input waiting and sleeping until there is since Scanner.nextLine() will block until a line is available. Have a look at this example I wrote to demonstrate it: Please input a linehelloWaited 1.892s for user inputUser input was: helloPlease input a line^DSystem.in was closed; exiting So all you … Read more

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)