What does null mean in java?


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More Core Java Interview Questions

Can I declare a class as private?

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Wha is the output from system.out.println(“hello”+null); ?

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Can an interface extend another interface?

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how copy the hashmap object into arraylist at java program?

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What about main() method in java ?

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What is the disadvantage of synchronization?

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What is logical variable?

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explain the classification of exception and hoew to handle the exceptions

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What is the driver class?

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Differences between C and Java?

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