28.1.1. Key Components

Try these first

1. 1.

   What is the role of the Class Loader in the JVM?

   Hint

   Think about how Java programs find and use class files.

2. 2.

   What does the Execution Engine do?

   Hint

   Consider how a program runs after it's been compiled.

3. 3.

   What is the primary function of the Class Loader?

   • Execute bytecode
   • Load classes into memory
   • Manage garbage collection

   Hint

   Think about the first step that allows a Java application to run.

4. 4.

   True or False: The JIT Compiler makes Java run slower by interpreting each bytecode line.

   • True
   • False

   Hint

   Consider the JIT’s role versus the Interpreter’s role.

5. 5.

   Explain the significance of the Garbage Collector in modern Java applications and how its implementation impacts overall application performance.

   Hint

   Consider scenarios in which a poor GC could lead to performance issues.

6. 6.

   Compare and contrast the roles of the Interpreter and the JIT Compiler and explain when each is preferred.

   Hint

   Think about both initial execution and long-running applications.