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Core Java Interview Questions
Questions Answers Views Company eMail

What is a hashmap used for?

185

What is the new line character?

188

Where is the find and replace?

172

What is string pooling concept?

180

What is parseint?

185

Does substring create a new object?

179

What is charat ()?

193

What is the r character?

189

How do you declare a variable?

181

What does int argc char * argv [] mean?

177

How do you change an int to a string?

171

How do you escape a string?

171

What is difference between filereader and bufferedreader?

180

What does indexof mean?

174

What is the use of bufferedreader?

170


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Un-Answered Questions { Core Java }

Does list allow duplicates in java?

177


Why declare Main() inside the class in java ?

242


What is an immutable class? How to create an immutable class?

209


explain multi-threading in java?

191


What is json parser in java?

188






Which programming language is best in future?

176


What do you understand by synchronization?

219


How do you include a string in java?

171


Difference between Linked list and Queue?

247


Explain different types of thread priorities ?

233


Highest level event class of the event-delegation model?

3056


What is java and their uses?

217


Why java is call by value?

176


What is a hashmap used for?

185


When throws keyword is used?

215