Java Basic Quiz

What is the essential software required to run Java programs from the command line?

• Java Runtime Environment (JRE)

• Integrated Development Environment (IDE)

• Java Development Kit (JDK)

  
  

• Java Virtual Machine (JVM)

  
  

How do you change a text file to a Java file?

• Compile the file using javac

  
  

• Save the file as a Java project

  
  

• Open the file in a Java IDE

  
  

• Rename the file with a .java extension

  
  

What is the purpose of the 'public static void main' method in a Java program?

• To save the program

  
  

• To define the entry point of the program

  
  

• To execute the program

  
  

• To compile the program

  
  

Which command is used to compile a Java program?

• java

• compile

• javac

• run

Which command is used to run a compiled Java program?

• javac

• java

• run

• execute

Which statement is true about java ?

• Java is a sequence-depended programming language

  
  

• Java is a code dependent programming language

  
  

• Java is a platform-dependent programming language

  
  

• Java is a platform-independent programming language

  
  

Which of these are selection statements in java

• Break

• For ( )

  
  

• If ( )

  
  

• Continue

  
  

Which of the following is a superclass of every class in java ?

• ArrayList

  
  

• Abstract class

  
  

• Object class

  
  

• String

Which of the following statements is a valid declaration of an object that belongs to “MyClass”?

• MyClass obj = new MyClass();

  
  

• MyClass obj = new MyClass;

  
  

• obj = new MyClass();

  
  

• new MyClass obj;

  
  

In the statement  int x; What is int ?

• a variable

  
  

• a data type

  
  

• a class

  
  

• an object