Core Java Java Intro and data types

Which of the following is not a feature of Java?

• Platform Independent

• Object-Oriented

• Memory Unsafe

• Robust

Java code is compiled into an intermediate form called:

• Object Code

• Bytecode

• Binary Code

• Source Code

Which of the following is not a Java primitive data type?

• String
• Float
• Boolean
• Integer

What is the size (in bits) of a Java ‘char’ data type?

• 8 bits
• 16 bits
• 32 bits
• 64 bits

Which of these data types is used to store decimal numbers in Java?

• int and char
• boolean and string
• float and double
• byte and short

What is the range of the Java byte data type?

• -128 to 128
• -256 to 255
• -128 to 127
• 0 to 255

What is the range of the Java short data type?

• 0 to 65535
• -32767 to 32768
• -32768 to 32767
• -128 to 127

Which formula correctly calculates the range of a signed integer data type with n bits in Java?

• −2ⁿ⁻¹ to (2ⁿ⁻¹ − 1)

• −2ⁿ⁻¹ to (2ⁿ)

• 0 to (2ⁿ⁻¹ − 1)

• −2ⁿ to (2ⁿ⁻¹ − 1)

What is the correct signature of the entry point main method in Java?

• public static void main(String[] args)
• public void main(String[] args)
• static void main(String args)
• public static main(String[] args)

What is Java?

• Java is a database management system.
• Java is primarily used for web design.
• Java is a high-level, object-oriented programming language.
• Java is a low-level programming language.