Answer Posted / bubun

string is slower in case of concatenation but stringBuffer
is faster than string.

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566

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What is json parser in java?

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Are arrays classes in java?

530

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What is difference between path and classpath?

556

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State the merge-sort principle and its time complexity.

570

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What is the difference between import java.util.date and java .util?

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Compare Mutex and Semaphore in java.

555

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What is the exact difference in between unicast and multicast object? Where we will use?

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What is array and arraylist in java?

525

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What class of exceptions are generated by the java run-time system?

625

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629

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