4
Q:

What is the difference between Serial and Throughput Garbage collector ? 

Answer:
Q:

Which containers use a FlowLayout as their default layout ?

Answer

The Panel and Applet classes use the FlowLayout as their default layout.

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Subject: Java - Technology

0 316
Q:

Which containers use a border Layout as their default layout ?

Answer

The window, Frame and Dialog classes use a border layout as their default layout.

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Subject: Java - Technology

0 357
Q:

Why static methods cannot access non static variables or methods?

Answer

A static method cannot access non static variables or methods because static methods doesnt need the object to be accessed. So if a static method has non static variables or non static methods which has instantiated variables they will no be intialized since the object is not created and this could result in an error.

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Subject: Java - Technology

8 519
Q:

What is the importance of finally block in exception handling ?

Answer

A finally block will always be executed, whether or not an exception is actually thrown. Even in the case where the catch statement is missing and an exception is thrown, the finally block will still be executed. Last thing to mention is that the finally block is used to release resources like I/O buffers, database connections, etc.

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Subject: Java - Technology

7 616
Q:

When is the finalize() called ? What is the purpose of finalization ?

Answer

The finalize method is called by the garbage collector, just before releasing the object’s memory. It is normally advised to release resources held by the object inside the finalize method.

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Subject: Java - Technology

1 484