Java Language Quiz

Which of the following statements about the Java language is true?

• Java language is case-sensitive-

• Java is not a fully object-oriented language

• using a colon to end the command.

• The Java code only runs on the Wlndo.vs platform

What is the purpose of a Java Virtual Machine(JVM)?

• It iS used to interpret and execute Java

• It is used to write the bytecode into the .class file

• It is used to verity and improve performance the of Java programs

• All Of the others

Which of the following statements is used to compile the program.java file?

• javac program.java

• java -java program.java

• javac -c program java

• java -j program java

Which is a valid keyword in Java?

• interface

• Include

• Float

• Integer

Which of the following concepts does not belong to object-oriented programming features?

• Cross-platform

• Inheritance

• Polymorphs m

• Encapsulation

Which of the following is NOT a Java feature?

• Use of pointers

• Ease of learning.

• It is a secure language

• Independent Platform

A Java source code will be compiled to the file in which of the following extensions?

• .class

• -java

• .exe

• .bat

Which of the following is a primitive data type in Java?

• Float

• String

• Integer

• ArrayList

• byte

which of the following is a Java primitive type?

• boolean

• String

• Object

• Class

Concerning rules and conventions for naming variables in Java, choose an incorrect statement.

• An identifier can begin with any character except 'S and ‘_'

• An identifier can begin With a character.

• An identifier can begin with the dollar Sign character.

• An Identifier can write the underscore character.