Recent questions and answers in JAVA

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Explain the Priority Queue.

answered 17 hours ago in JAVA by anonymous

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database languages

answered 21 hours ago in JAVA by anonymous

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Can we make array volatile in Java?

answered 1 day ago in JAVA by SakshiSharma (3k points)

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Can volatile make a non-atomic operation to atomic?

answered 1 day ago in JAVA by SakshiSharma (3k points)

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What are practical uses of volatile modifier?

answered 1 day ago in JAVA by SakshiSharma (3k points)

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What guarantee volatile variable provides?

answered 1 day ago in JAVA by SakshiSharma (3k points)

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Which one would be easy to write? synchronization code for 10 threads or 2 threads?

answered 1 day ago in JAVA by SakshiSharma (3k points)

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How do you call wait() method? using if block or loop? Why?

answered 1 day ago in JAVA by SakshiSharma (3k points)

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What is false sharing in the context of multi-threading?

answered 1 day ago in JAVA by SakshiSharma (3k points)

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What is busy spin? Why should you use it?

answered 1 day ago in JAVA by SakshiSharma (3k points)

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How do you take thread dump in Java?

answered 1 day ago in JAVA by SakshiSharma (3k points)

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is Swing thread-safe?

answered 1 day ago in JAVA by SakshiSharma (3k points)

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What is a thread local variable in Java?

answered 1 day ago in JAVA by SakshiSharma (3k points)

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Write wait-notify code for producer-consumer problem?

answered 1 day ago in JAVA by SakshiSharma (3k points)

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Write code for thread-safe Singleton in Java?

answered 1 day ago in JAVA by SakshiSharma (3k points)

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The difference between sleep and wait in Java?

answered 1 day ago in JAVA by SakshiSharma (3k points)

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What is an immutable object? How do you create an Immutable object in Java?

answered 1 day ago in JAVA by SakshiSharma (3k points)

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Can we cast an int value into byte variable? what will happen if the value of int is larger than byte?

answered 1 day ago in JAVA by SakshiSharma (3k points)

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Which class contains clone method? Cloneable or Object?

answered 1 day ago in JAVA by SakshiSharma (3k points)

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Is ++ operator is thread-safe in Java?

answered 1 day ago in JAVA by SakshiSharma (3k points)

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Difference between a = a + b and a += b ?

answered 1 day ago in JAVA by SakshiSharma (3k points)

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Can I store a double value in a long variable without casting?

answered 1 day ago in JAVA by SakshiSharma (3k points)

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What will this return 3*0.1 == 0.3? true or false?

answered 1 day ago in JAVA by SakshiSharma (3k points)

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Which one will take more memory, an int or Integer?

answered 1 day ago in JAVA by SakshiSharma (3k points)

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Why is String Immutable in Java?

answered 1 day ago in JAVA by SakshiSharma (3k points)

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Can we use String in the switch case?

answered 1 day ago in JAVA by SakshiSharma (3k points)

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What is constructor chaining in Java?

answered 1 day ago in JAVA by SakshiSharma (3k points)

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What is The difference between Serial and Parallel Garbage Collector?

answered 1 day ago in JAVA by SakshiSharma (3k points)

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What is the size of an int variable in 32-bit and 64-bit JVM?

answered 1 day ago in JAVA by SakshiSharma (3k points)

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A difference between WeakReference and SoftReference in Java?

answered 1 day ago in JAVA by SakshiSharma (3k points)

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