Interview Questions and Answers

31.What is purpose of FATAL log level? FATAL − Designates very severe error events that will presumably lead the application to abort.

21.How will you create a logger in any class? Any other named Logger object instance is obtained through the second method by passing the name of the logger. The name …

11.What is the purpose of LogManager object? LogManager − The LogManager object manages the logging framework. It is responsible for reading the initial configuration parameters from a system-wide configuration file …

1.What is log4j? log4j is a reliable, fast and flexible logging framework (APIs) written in Java, which is distributed under the Apache Software License. log4j has been ported to the …

41.How to select all elements using jQuery? $(‘*’) selects all elements available in a DOM.

31.Which built-in method sorts the elements of an array? sort() method sorts the elements of an array.

21.What is closure? Closures are created whenever a variable that is defined outside the current scope is accessed from within some inner scope.

11.Can you assign a anonymous function to a variable? Yes! An anonymous function can be assigned to a variable.

1.What is jQuery? jQuery is a fast and concise JavaScript Library created by John Resig in 2006 with a nice motto – Write less, do more. jQuery simplifies HTML document …

41.How will you insert multiple rows into a database in a single transaction? Follow steps as below //turn off the implicit commit Connection.setAutoCommit(false); //..your insert/update/delete goes here Connection.Commit(); //a new …