java unit 2

Which keyword is used to define a class in Java?

• class
• def
• struct
• ClassDef

Which method is the entry point of any Java program?

• start()
• main()
• execute()
• init()

Java was developed by?

• Microsoft
• Sun Microsystems
• Google
• IBM

Which extension is used for Java source files?

• .jav
• .java
• .js
• .class

Which JVM converts bytecode into machine code?

• Interpreter
• JIT Compiler
• Assembler
• Loader

Which of these is a primitive data type in Java?

• String
• Integer
• int
• Scanner

Default value of boolean variable?

• true
• false
• 0
• null

Which keyword is used for defining constants?

• const
• final
• static
• constant

Which data type is used for single characters?

• String
• char
• int
• boolean

Range of byte in Java?

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