Software Engineering Specialist Interview Questions and Answers for Freshers

HashSet is an unordered collection that uses hashing to store and retrieve elements efficiently.

• HashSet internally uses a HashMap to store its elements.

• Each element is stored as a key in the HashMap with a fixed value.

• When adding an element, its hash code is calculated and used to determine the bucket in the HashMap where it will be stored.

• If multiple elements have the same hash code, they are stored in the same bucket as a linked list.

• To retrieve an element, its hash code is...read more

COND parameter is used in JCL (Job Control Language) to specify a condition for executing a job step.

• COND parameter is used to specify a condition code that must be satisfied for the job step to execute.

• It can be used with IF or ONLY keywords to control the execution flow based on the condition code.

• For example, COND=(0,NE) means the job step will execute if the condition code is not equal to 0.