Operative Media Senior QA Engineer Interview Questions and Answers

final is a keyword used to declare constants, finalize is a method used for cleanup operations, and finally is a block used for exception handling.

• final is a keyword in Java used to declare constants that cannot be changed, like final int x = 10;

• finalize is a method in Java used for cleanup operations before an object is garbage collected, like protected void finalize() {...}

• finally is a block in Java used for exceptio...read more

POST is used to create a new resource, while PUT is used to update an existing resource.

• POST is non-idempotent, meaning multiple identical requests will create multiple resources.

• PUT is idempotent, meaning multiple identical requests will have the same effect as a single request.

• POST is often used for creating new records in a database.

• PUT is often used for updating existing records in a database.

System.exit() is a method in Java that terminates the currently running Java Virtual Machine.

• System.exit() terminates the JVM and shuts down the program immediately.

• It takes an integer argument as an exit status code.

• Calling System.exit(0) indicates successful termination.

• System.exit(1) or any non-zero value indicates abnormal termination.

Algorithm to find element in array with equal sum on both sides

• Iterate through array and calculate sum of elements on left and right side of each element

• Compare sums on both sides for each element to find the desired element

• Return the element if found, otherwise return -1