How do you use wildcards?


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More Core Java Interview Questions

Write a program to solve producer consumer problem in java?

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we have syntax like for(int var : arrayName) this syntax is to find whether a number is in the array or not.but i want to know how to find that number's location.

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What is a lambda expression ? What's its use ?

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Explain methods specific to list interface?

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If an application has multiple classes in it, is it okay to have a main method in more than one class?

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What is function and its uses?

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How are destructors defined in java?

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What are uses of Hash Code?

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Can we have two methods in a class with the same name?

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What is the syntax and characteristics of a lambda expression?

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Which list is sorted in java?

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