What is hashset in java?
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How to set the Heap size in Java ?
What is collection class in java? List down its methods and interfaces.
What is array and arraylist in java?
How dead lock situation occurs in java and how you can identify it?
What are some characteristics of interference class?
Scenario: There are 1 to 100 numbers. Each number should be keep in the each column like from A column to Z column ie 1 to 26. From 27 to 52 should be in 2nd row in the excel sheet. This has to be continue till 100. How do you write Java program and what are various methods.
What is encapsulation in java?
Can we use catch statement for checked exceptions?
What is regex in java?
Explain the difference between abstract classes and interfaces in java?
What is == mean?
there are some duplicate values in ArrayList, how U'll get that array with out duplicate?