What are drawbacks of singleton class?

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how to create a jar file in java

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Tell me a few examples of final classes defined in Java API?

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"We cannot create an object of interface but we can create a variable of it". Discuss the statement with the help of an example. (Plz help us to provide immediately.)

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What is java util concurrentmodificationexception?

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Can we return null in java?

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What releases of Java technology are currently available? What do they contain?

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why java does not support unsigned keyword?

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Can a list be null in java?

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What is default exception handling in java?

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Explain jdk, jre and jvm?

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What is meant by collection in java?

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