Technical Interview Questions and Answers

1.There is a concatenated input DD name with 3 datasets. How to override only one dataset in those 3 datasets? Specify DD DUMMY in the overriding JCL for the ones, …

41.Can you access Cookie using javascript? JavaScript can also manipulate cookies using the cookie property of the Document object. JavaScript can read, create, modify, and delete the cookie or cookies …

31.Which built-in method adds one or more elements to the end of an array and returns the new length of the array? push() method adds one or more elements to …

21.Which type of variable among global and local, takes precedence over other if names are same? A local variable takes precedence over a global variable with the same name.

11.How many types of functions JavaScript supports? A function in JavaScript can be either named or anonymous.

1.What is JavaScript? JavaScript is a lightweight, interpreted programming language with object-oriented capabilities that allows you to build interactivity into otherwise static HTML pages. The general-purpose core of the language …

41.What is Polymorphism? Polymorphism is the ability of an object to take on many forms. The most common use of polymorphism in OOP occurs when a parent class reference is …

31.What is an Exception? An exception is a problem that arises during the execution of a program. Exceptions are caught by handlers positioned along the thread’s method invocation stack.

21.What do you mean by synchronized Non Access Modifier? Java provides these modifiers for providing functionalities other than Access Modifiers, synchronized used to indicate that a method can be accessed …

11.What is a Class Variable? These are variables declared with in a class, outside any method, with the static keyword.