The BASE for JAVA LEARNING
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QUIZ for SECTION I
To find an answer, click on the desired question.
QUESTION 1: What is JAVA?
QUESTION 2: State 4 characteristics of JAVA.
QUESTION 3: What does it mean that JAVA is Portable?
QUESTION 4: Why is Multi-threading useful?
QUESTION 5: What does the Garbage Collection does in JAVA?
QUESTION 6: What would you name a file of a class "Question" which contains the main method?
QUESTION 7: What's the Instruction used to compile a java file from the command line?
QUESTION 8: What's the Bytecode?
ANSWER to QUESTION 1: JAVA is a Portable Object-Oriented, Portable, Multithreading High Level Language.
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ANSWER to QUESTION 2: 4 Characteristics of JAVA:
Portability
Multithreading
Stability
Simplicity
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ANSWER to QUESTION 3: JAVA compiled classes can be executed from any platform. (Written once, run anywhere)
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ANSWER to QUESTION 4: Multithreading allows the launching of two different separate program segments simultaneously within one program.
It is useful in GUI development, as well as in client-server applications.
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ANSWER to QUESTION 5: JAVA Garbage Collection allows for the clean up of Objects that are not used any more when the Memory resources are low.
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ANSWER to QUESTION 6: File name: Question.java
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ANSWER to QUESTION 7: Instruction: javac Example: java Question.java
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ANSWER to QUESTION 8: The code contained within a compiled JAVA class.
For instace, the bytecode of the Question class is contained within the Question.class file.
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