InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 151. |
What is dynamic method dispatch? |
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| 152. |
What is the similarity between Dynamic Binding and linking? |
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| 153. |
State the difference between creating String as new () and literal. |
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| 154. |
What are some alternatives to inheritance? |
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| 155. |
What are the steps in the JDBC connection? |
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| 156. |
Mention the default values of all the elements of an array defined as an instance variable. |
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| 157. |
How applets communicate with each other? |
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| 158. |
Is there any difference between synchronized methods and synchronized statements? |
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| 159. |
What is the difference between preemptive scheduling and time slicing? |
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| 160. |
How are Observer and Observable used? |
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| 161. |
Can a top level class be private or protected? |
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| 162. |
What is the common usage of serialization? What exceptions occur during serialization? |
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| 163. |
Are the imports checked for validity at compile time? Will the code containing an import such as java.lang.ABCD compile? |
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| 164. |
What do you understand by weak reference? |
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| 165. |
What do you understand by Soft reference? |
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| 166. |
Write a code to show a static variable |
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| 167. |
What is the difference between a constructor and a method? |
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| 168. |
Tell us something about set interface. |
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| 169. |
What are the different collection views provided by Maps? |
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| 170. |
When should you use ArrayList and when should you use LinkedList? |
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| 171. |
What are the restrictions imposed on method overriding? |
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| 172. |
What is final modifier? |
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| 173. |
Explain numeric promotion? |
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| 174. |
How do constructors use this() and super()? |
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| 175. |
Tell us something about an Iterator. |
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| 176. |
If a class is declared without any access modifiers, where can the class be accessed? |
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| 177. |
What do you mean by order of precedence and associativity? |
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| 178. |
What is Downcasting? |
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| 179. |
Tell us something about different types of casting? |
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| 180. |
Can we declare a static variable inside a method? |
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| 181. |
What is the difference between final, finally and finalize()? |
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| 182. |
If you do not want your class to be inherited by any other class. What would you do? |
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| 183. |
Which package is imported by default? |
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| 184. |
When is finally block NOT called? |
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| 185. |
What is Covariant Return Type? |
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| 186. |
Why Singleton pattern is better than creating Singleton class with static instance? |
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| 187. |
How can you make sure that your singleton class will always return single instance in multi-threaded environment? |
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| 188. |
What is Singleton Pattern? |
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| 189. |
What is Re-factoring in Software? |
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| 190. |
What is Hash Code collision? |
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| 191. |
What is Contract between hashcode and equal method? |
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| 192. |
How static variable work in java? |
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| 193. |
What is the use of volatile in Java? |
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| 194. |
What will happen if non-synchronized method calls a static synchronized method and what kind of lock it acquires? |
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| 195. |
Static Synchronization vs. Instance Synchronization? |
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| 196. |
What is the Difference between synchronized and synchronized block? |
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| 197. |
What is the use of Join method? |
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| 198. |
Which way a developer should use for creating thread, i.e. Sub classing Thread or implementing Runnable. |
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| 199. |
What are the different ways of creating thread? |
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| 200. |
Explain Java Thread Life cycle. |
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