Object-Oriented Programming Languages Quiz
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Questions and Answers

Which edition of Java targets environments with limited resources?

  • Java Platform, Micro Edition (Java ME) (correct)
  • Java Platform, Mobile Edition (Java ME)
  • Java Platform, Standard Edition (Java SE)
  • Java Platform, Enterprise Edition (Java EE)
  • What is the primary advantage of Java programming language?

  • Platform-dependence
  • Limited resources targeting
  • Simplicity
  • Object-oriented (correct)
  • When was Java SE 7 released?

  • February 6, 2002
  • December 11, 2006
  • September 30, 2004
  • July 2011 (correct)
  • Which programming language holds the top position in the TIOBE Programming Community Index for December 2011?

    <p>Java</p> Signup and view all the answers

    What type of applications can be developed using Java?

    <p>Desktop Application</p> Signup and view all the answers

    What is the file extension for Java source code?

    <p>.java</p> Signup and view all the answers

    What is the purpose of Java Card?

    <p>For smartcards</p> Signup and view all the answers

    Which tool is used to compile Java source files into bytecode?

    <p>javac</p> Signup and view all the answers

    What is the machine language of the Java Virtual Machine (JVM)?

    <p>Bytecodes</p> Signup and view all the answers

    Which method is automatically called when a Java class is executed?

    <p>main</p> Signup and view all the answers

    What is the purpose of the Java application launcher tool (java)?

    <p>To run Java applications using the JVM</p> Signup and view all the answers

    What is a compiler error in Java?

    <p>A problem in the structure of a program that causes the compiler to fail</p> Signup and view all the answers

    What keyword indicates the start of a class definition in Java?

    <p>class</p> Signup and view all the answers

    In Java, what does the keyword 'public' indicate?

    <p>Accessibility level of a method or class</p> Signup and view all the answers

    What does the 'static' keyword signify in Java?

    <p>'static' members belong to the class instead of a specific instance</p> Signup and view all the answers

    What does a compiler output represent in Java?

    <p>Errors and warnings produced during compilation</p> Signup and view all the answers

    In Java, what is the purpose of a variable?

    <p>To store information such as letters, numbers, words, and sentences</p> Signup and view all the answers

    What are the three properties of a variable in Java?

    <p>Memory location, type of data, name (identifier)</p> Signup and view all the answers

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

    <p>String</p> Signup and view all the answers

    What is the result of the expression $5 + 3 * 2$ in Java?

    <p>$11$</p> Signup and view all the answers

    What does the 'boolean' data type represent in Java?

    <p>True or false values</p> Signup and view all the answers

    What is the main purpose of a method in Java?

    <p>To call (invoke) a set of code at any point in a program</p> Signup and view all the answers

    Which modifier is used to make a method available without the need to create an object of the class where it is defined?

    <p>static</p> Signup and view all the answers

    What is the returnValueType when a method performs the desired operations without returning a value?

    <p>void</p> Signup and view all the answers

    In Java, what is the purpose of using the 'final' modifier for a variable?

    <p>To define a variable as a constant</p> Signup and view all the answers

    What is the correct way to call the 'm1' method from class A within class B in Java?

    <p>A.m1();</p> Signup and view all the answers

    What type of comments are ignored by the Java compiler?

    <p>// Enclosed comments</p> Signup and view all the answers

    In Java, what is the primary purpose of an identifier?

    <p>To name variables, constants, methods, classes, and packages</p> Signup and view all the answers

    What does the keyword 'void' signify when defining a method in Java?

    <p>It returns no value</p> Signup and view all the answers

    What is the correct way to declare a Java constant?

    <p>public static final double PI=3.14;</p> Signup and view all the answers

    What does the 'public' modifier indicate when declaring a method in Java?

    <p>It specifies the access type of the method</p> Signup and view all the answers

    What is the purpose of using identifiers in Java?

    <p>To name variables, constants, methods, classes, and packages</p> Signup and view all the answers

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