InterviewSolution
Saved Bookmarks
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.
| 101. |
Can you write a Java class that could be used both as an applet as well as an application? |
| Answer» | |
| 102. |
How to add menushortcut to menu item? |
| Answer» | |
| 103. |
Explain the use of sublass in a Java program? |
| Answer» | |
| 104. |
What are use cases? |
| Answer» | |
| 105. |
What is Serialization and deserialization? |
| Answer» | |
| 106. |
What is the difference between static and non-static variables? |
| Answer» | |
| 107. |
Which class should you use to obtain design information about an object? |
| Answer» | |
| 108. |
What is the difference between the Reader/Writer class hierarchy and the InputStream/OutputStream class hierarchy? |
| Answer» | |
| 109. |
What is the purpose of File class? |
| Answer» | |
| 110. |
What is the difference between the paint() and repaint() methods? |
| Answer» | |
| 111. |
Which package has light weight components? |
| Answer» | |
| 112. |
What is the difference between a Window and a Frame? |
| Answer» | |
| 113. |
What are Wrapper classes? |
| Answer» | |
| 114. |
How many bits are used to represent Unicode, ASCII, UTF-16, and UTF-8 characters? |
| Answer» | |
| 115. |
Why Vector class is used? |
| Answer» | |
| 116. |
What is the difference between yielding and sleeping? |
| Answer» | |
| 117. |
Does it matter in what order catch statements for FileNotFoundException and IOException are written? |
| Answer» | |
| 118. |
What invokes a thread's run() method? |
| Answer» | |
| 119. |
How does multi-threading take place on a computer with a single CPU? |
| Answer» | |
| 120. |
What are the ways in which a thread can enter the waiting state? |
| Answer» | |
| 121. |
What is NullPointerException? |
| Answer» | |
| 122. |
What is final class? |
| Answer» | |
| 123. |
Difference between Overloading and Overriding? |
| Answer» | |
| 124. |
Define composition? |
| Answer» | |
| 125. |
What is static block? |
| Answer» | |
| 126. |
Can a constructor be made final? |
| Answer» | |
| 127. |
What is the purpose of default constructor? |
| Answer» | |
| 128. |
What is the difference between object oriented programming language and object based programming language? |
| Answer» | |
| 129. |
Define JIT compiler? |
| Answer» | |
| 130. |
What is a WAR file? |
| Answer» | |
| 131. |
What is JAR file? |
| Answer» | |
| 132. |
Define JRE i.e. Java Runtime Environment? |
| Answer» | |
| 133. |
Explain the following line used under Java Program − |
| Answer» | |
| 134. |
Difference between throw and throws? |
| Answer» | |
| 135. |
What is Comparable Interface? |
| Answer» | |
| 136. |
Explain TreeSet? |
| Answer» | |
| 137. |
Explain Set Interface? |
| Answer» | |
| 138. |
Explain the usage of this() with constructors? |
| Answer» | |
| 139. |
Define immutable object? |
| Answer» | |
| 140. |
Explain garbage collection in Java? |
| Answer» | |
| 141. |
An applet extend which class? |
| Answer» | |
| 142. |
What is an applet? |
| Answer» | |
| 143. |
What are the two ways in which Thread can be created? |
| Answer» | |
| 144. |
What do you mean by Multithreaded program? |
| Answer» | |
| 145. |
Why Packages are used? |
| Answer» | |
| 146. |
Define Packages in Java? |
| Answer» | |
| 147. |
Give some features of Interface? |
| Answer» | |
| 148. |
What is an Interface? |
| Answer» | |
| 149. |
What is the primary benefit of Encapsulation? |
| Answer» | |
| 150. |
When Abstract methods are used? |
| Answer» | |