9-HashMap+java

What is a HashMap in Java?

• Data structure
• Method
• Interface
• Class

What is the purpose of using a HashMap in Java?

• To store elements in key/value pairs
• To sort data in ascending order
• To perform mathematical calculations
• To create loops

Is HashMap better than an array in Java?

• Yes
• No
• Depends on the use case
• Both are equally good

What is HashMap and HashSet in Java?

• Pairs
• Key-Value
• Indexing
• Objects

Is HashMap a data structure?

• Yes
• No
• Non-Synchronized
• Key-Value

When would you use a HashMap in Java?

• Duplicate
• Unique
• cSorted
• None

What is the difference between ArrayList and HashMap in Java?

• Values
• Pairs
• Keys
• Indexing

Which is faster list or map in Java?

• ArrayList
• HashMap
• Both are equally fast
• It depends on the use case

Why to HashMap what is advantages?

• Synchronized
• Non-Synchronized
• Fail-safe iterator
• All of the above

Is JavaScript object a HashMap?

• Yes
• No
• Indexing
• HashMap