How do you control extraneous variables?

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Hey buddy.. can you please tell me about the use of marker interface? And is there any link between marker interface and factory methods? Thanks in advance.

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Explain about GridBag Layout?

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What is static variable with example?

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what really hapens when a object is created using new operator? 1.is it allocates memory to all variables and methods in the class with reference to that object?

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Under what circumstances an object reference be cast to an interface reference?

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what is jndi?

1 Answers   TCS,

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What is package protected in java?

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How does remove work in java?

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What is java algorithm?

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Can constructor be protected in java?

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Which of the following can be referenced by a variable? A. The instance variables of a class only B. The methods of a class only C. The instance variables and methods of a class

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