Java Core Concepts Quiz

What is the mechanism to read/write data (bytes or characters)?

• I/O Streams

• File handling

• Network communication

• Data storage

What is the purpose of capturing user input via console?

• File handling

• Interactive CLI applications

• Logging

• Data storage

What is the definition of displaying output to the console?

• Logging

• User feedback

• File handling

• Data storage

What is the character-based output stream used for writing formatted text to files?

• PrintWriter Class

• BufferedReader

• FileInputStream

• Scanner

What is the definition of file I/O using Reader/Writer classes?

• Reading and Writing Files

• File handling

• Data storage

• Logging

What are Java programs embedded in browsers called?

• Applets

• Classes

• Methods

• Interfaces

What is the type-checking operator in Java?

• instanceof Keyword

• stricƞp Keyword

• native Methods

• String Operations

What enforces IEEE 754 floating-point standard?

• stricƞp Keyword

• instanceof Keyword

• native Methods

• String Construction

What are methods implemented in non-Java languages called?

• native Methods

• Java Methods

• String Operations

• Applet Methods

What is the process of creating string objects?

• String Construction

• String Operations

• String Comparison

• String Buffer