Java Intro (hard)

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Questions and Answers

Which principle is Java known to follow?

  • Write Once, Deploy Anywhere
  • Write Once, Run Anywhere (correct)
  • Write Once, Use Anywhere
  • Write Once, Compile Anywhere

What is the main focus of object-oriented programming?

  • Procedures
  • Objects (correct)
  • Functions
  • Variables

What makes Java a simple language to learn and use?

  • Multiple inheritance
  • Operator overloading
  • Lack of complex features (correct)
  • Pointers

Which feature of Java contributes to its security?

<p>Bytecode Verifier (D)</p> Signup and view all the answers

What makes Java highly portable?

<p>Use of a Java Virtual Machine (JVM) (D)</p> Signup and view all the answers

What contributes to Java's robustness?

<p>Automatic memory management (D)</p> Signup and view all the answers

What approach does Java use for compiling and executing code?

<p>Just-In-Time (JIT) (D)</p> Signup and view all the answers

What does Java support that enables programs to perform multiple tasks simultaneously?

<p>Multi-threading (D)</p> Signup and view all the answers

What does Java's automatic memory management handle?

<p>Allocation and deallocation of memory (A)</p> Signup and view all the answers

What makes Java an open-source language?

<p>The availability of its source code on the internet (C)</p> Signup and view all the answers

Which company developed Java?

<p>Sun Microsystems (B)</p> Signup and view all the answers

Java is a programming language that is primarily used for what?

<p>Web development (B)</p> Signup and view all the answers

What is the purpose of Java's automatic memory management?

<p>To prevent memory leaks (A)</p> Signup and view all the answers

What is the role of JVM in Java?

<p>Java Virtual Machine (B)</p> Signup and view all the answers

What does JDK stand for in Java?

<p>Java Development Kit (D)</p> Signup and view all the answers

What is one of the key features of Java that makes it different from other programming languages?

<p>Platform independence (B)</p> Signup and view all the answers

What year was the first publicly available version of Java released?

<p>1995 (C)</p> Signup and view all the answers

What is the main advantage of using Java for creating modular and reusable code?

<p>Code reusability (A)</p> Signup and view all the answers

What does JRE stand for in Java?

<p>Java Runtime Environment (D)</p> Signup and view all the answers

What is one of the characteristics of Java that contributes to its robustness?

<p>Automatic memory management (D)</p> Signup and view all the answers

Which software implementation executes Java programs like a real machine?

<p>JVM (B)</p> Signup and view all the answers

Which component of the Java Runtime Environment (JRE) is responsible for executing a compiled file?

<p>JVM (D)</p> Signup and view all the answers

Which component of the Java Development Kit (JDK) is responsible for converting source code to bytecode?

<p>JRE (C)</p> Signup and view all the answers

Which component of the JDK is used for debugging Java programs?

<p>JDK (C)</p> Signup and view all the answers

Which component of the JRE is responsible for supporting browser plug-ins and applets?

<p>JVM (B)</p> Signup and view all the answers

Which component of the JDK is used for generating documentation for Java code?

<p>JavaDoc (D)</p> Signup and view all the answers

Which term is used to describe the process of converting human-understandable source code to machine-understandable code?

<p>Compilation (C)</p> Signup and view all the answers

Which component of the JRE provides a run-time environment for executing Java programs?

<p>JVM (B)</p> Signup and view all the answers

Which component of the JDK is responsible for loading, verifying, and executing Java code?

<p>JVM (A)</p> Signup and view all the answers

Which programming language is often referred to as the 'King of programming languages'?

<p>Java (D)</p> Signup and view all the answers

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