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This page provide you Digital Electronics Multiple Choice Question Answer that is very useful for Semester , DRDO, ISRO ,Banking , Railway, Gate and another exam.
Q.1 Who is the Father of JAVA?
- A) Dennis Ritchie
- B) James Gosling
- C) Bjarne Stroustrup
- D) None of these
Q.2 JAVA is defined as a ________?
- A) Secure programming language
- B) Fast programming language
- C) Powerful programming language
- D) All of the above
Q.3 What was the name of Java before it was renamed?
- A) JAVA
- B) Oak
- C) SIMULA
- D) None of these
Q.4 What was Java first called by James Gosling during its initial development?
- A) Green Talk
- B) Oak
- C) SIMULA
- D) None of these
Q.5 What was the file extension used for the 'Green Talk' project?
- A) .java
- B) .gt
- C) .oak
- D) None of these
Q.6 In which year was the 'Oak' language officially renamed to 'Java'?
- A) 1987
- B) 1994
- C) 1991
- D) None of these
Q.7 What is the standard file extension for Java source code files?
- A) .gt
- B) .java
- C) .oak
- D) None of these
Q.8 In which year was the Java programming language officially developed/released?
- A) 1972
- B) 1995
- C) 1987
- D) None of these
Q.9 Sun Microsystems released its first public implementation in 1996 as?
- A) JDK 1.0
- B) JDK 1.1
- C) JDK 1.5
- D) None of these
Q.10 What are considered the four 'pillars' of Object-Oriented Programming in Java?
- A) Abstraction
- B) Polymorphism
- C) Inheritance & Encapsulation
- D) All of the above
Q.11 Java was originally developed by which company?
- A) Sun Microsystems
- B) Oracle
- C) Microsoft
- D) None of these
Q.12 Which of the following are distinct 'flavors' or editions of Java?
- A) J2SE (Standard Edition)
- B) J2EE (Enterprise Edition)
- C) J2ME (Micro Edition)
- D) All of the above
Q.13 Which company owns the Java product currently?
- A) Sun Microsystems
- B) Microsoft
- C) Oracle
- D) None of these
Q.14 What were the very first versions of Java released for testing?
- A) JDK 1.0
- B) JDK 1.5
- C) JDK Alpha & Beta
- D) None of these
Q.15 What is the command used to compile a Java program?
- A) javac filename.java
- B) java filename.java
- C) compile filename.java
- D) None of these
Q.16 What is the command used to execute (run) a compiled Java class?
- A) javac class_name
- B) javac class_name.java
- C) java class_name
- D) None of these
Q.17 In the context of Java development, what does JDK stand for?
- A) JAVA Design Kit
- B) JAVA Developer Kit
- C) JAVA Development Kit
- D) None of these
Q.18 In the context of Java, what does JRE (or JRC in some contexts) stand for?
- A) JAVA Running Environment
- B) JAVA Runtime Environment
- C) JAVA Run Execution
- D) None of these
Q.19 What does the acronym JVM stand for?
- A) JAVA Virtual Machine
- B) JAVA Virtual Memory
- C) JAVA Virtual Moment
- D) None of these
Q.20 Which of the following is NOT a standard application type for Java?
- A) Desktop Applications
- B) Mobile Apps
- C) Web Applications
- D) Physical Building construction