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Core Java Interview Questions
Questions Answers Views Company eMail

What are the different types of collections in java?

226

How do you do descending order in java?

252

What is anagram number?

194

What is anagram of a string?

207

What is anagram word?

224

How does linkedhashmap work in java?

221

What is stack class in java?

225

What is string in java with example?

202

How to sort an array in java without using sort method?

217

How do you generate random numbers in java?

213

What is navigable map in java?

219

What is native method in java?

231

How to sort double array in java?

252

What was java originally called?

205

How do you define a set in java?

211


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Un-Answered Questions { Core Java }

Why is flag used in java?

237


What is externalizable?

260


What are the drawbacks of singleton class?

222


How do you use compareto in java?

221


Can we execute a program without main?

237






What is meant by structural programming?

260


Explain aggregation in java?

249


What is the purpose of garbage collection in java? When is it used?

245


How to access arraylist elements in java?

206


What is the largest number a double can hold?

240


Can we access the non-final local variable, inside the local inner class?

237


What is final access modifier in java?

296


What are the restrictions that are applied to the java static methods?

245


Explain which of the following methods releases the lock when yield(), join(),sleep(),wait(),notify(), notifyall() methods are executed?

261


What is the difference between break and continue statements?

252