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Focused questions for skill assessment

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Premium questions with correct answers

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Free Sample Questions for Oracle Sun Certified Java Programmer

What is the purpose of making a method 'synchronized'?

No. Only the parent (superclass) can access it's own private methods and fields.

Strictfp and final are legal - strictfp and abstract are legal - but you can't put final and abstract together.

Instance

It indicates that a method can only be accessed by one thread at a time.

Answer:
It indicates that a method can only be accessed by one thread at a time.

What is the purpose of making a field 'transient'?

EnumName.VALUE;

32 bits.

It prevents the field from being serialized as the JVM will skip it.

It indicates that a method can only be accessed by one thread at a time.

Answer:
It prevents the field from being serialized as the JVM will skip it.