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Can you override an overloaded method in Java?
OpenVaishnavi Talawar asked 3 years ago • Java
375 views0 answers0 votes
What is the advantage of using Unicode characters in Java?
OpenVaishnavi Talawar asked 3 years ago • Java
250 views0 answers0 votes
What is the difference between super and this keywords in Java?
OpenVaishnavi Talawar asked 3 years ago • Java
242 views0 answers0 votes
Why does Java provide default constructor?
OpenVaishnavi Talawar asked 3 years ago • Java
230 views0 answers0 votes
What is information hiding in Java?
OpenVaishnavi Talawar asked 3 years ago • Java
296 views0 answers0 votes
What is the reason to organize classes and interfaces in a package in Java?
OpenVaishnavi Talawar asked 3 years ago • Java
269 views0 answers0 votes
Why do you use Upcasting or Downcasting in Java ?
OpenVaishnavi Talawar asked 3 years ago • Java
295 views0 answers0 votes
Can we create an abstract class that extends another abstract class?
OpenVaishnavi Talawar asked 3 years ago • Java
238 views0 answers0 votes
What is the difference between a class and an object in Java?
OpenVaishnavi Talawar asked 3 years ago • Java
256 views0 answers0 votes
What are the rules of method overloading and method overriding in Java?
OpenVaishnavi Talawar asked 3 years ago • Java
255 views0 answers0 votes
What is the use of run time polymorphism in Java?
OpenVaishnavi Talawar asked 3 years ago • Java
268 views0 answers0 votes
How do you fix your Serializable class, if it contains a member that is not serializable?
OpenVaishnavi Talawar asked 3 years ago • Java
303 views0 answers0 votes
What is the difference between sendRedirect and forward methods?
OpenVaishnavi Talawar asked 3 years ago • Java
244 views0 answers0 votes
Why String class is Immutable or Final in Java?
OpenVaishnavi Talawar asked 3 years ago • Java
233 views0 answers0 votes
Why Java does not support operator overloading?
OpenVaishnavi Talawar asked 3 years ago • Java
224 views0 answers0 votes
Can you instantiate this class?
OpenVaishnavi Talawar asked 3 years ago • Java
180 views0 answers0 votes
How do you implement Servlet Chaining in Java?
OpenVaishnavi Talawar asked 3 years ago • Java
223 views0 answers0 votes
Is empty ‘.java’ file name a valid source file name in Java?
OpenVaishnavi Talawar asked 3 years ago • Java
247 views0 answers0 votes
Why do we use JSP instead of Servlet in Java?
OpenVaishnavi Talawar asked 3 years ago • Java
193 views0 answers0 votes
What is HTTP Tunneling?
OpenVaishnavi Talawar asked 3 years ago • Java
274 views0 answers0 votes
Which protocol does Browser and Servlet use to communicate with each other?
OpenVaishnavi Talawar asked 3 years ago • Java
177 views0 answers0 votes
What is the difference between a Cookie and a Session object in Java?
OpenVaishnavi Talawar asked 3 years ago • Java
190 views0 answers0 votes
How do you find which client machine is sending request to your servlet in Java?
OpenVaishnavi Talawar asked 3 years ago • Java
280 views0 answers0 votes
What happens to the Exception object after the exception handling is done?
OpenVaishnavi Talawar asked 3 years ago • Java
206 views0 answers0 votes
In Java, what is the difference between throw and throws keywords?
OpenVaishnavi Talawar asked 3 years ago • Java
348 views0 answers0 votes
What is the advantage of PreparedStatement over Statement class in Java?
OpenVaishnavi Talawar asked 3 years ago • Java
223 views0 answers0 votes
When do you use Exception or Error in Java? What is the difference between these two?
OpenVaishnavi Talawar asked 3 years ago • Java
252 views0 answers0 votes
How can you make an Object eligible for Garbage collection in Java?
OpenVaishnavi Talawar asked 3 years ago • Java
231 views0 answers0 votes
In Java, if you set an object reference to null, will the Garbage Collector immediately free the memory held by that object?
OpenVaishnavi Talawar asked 3 years ago • Java
254 views0 answers0 votes
When would you use Serial Garabage collector or Throughput Garbage collector in Java?
OpenVaishnavi Talawar asked 3 years ago • Java
203 views0 answers0 votes
When does JVM call the finalize() method?
OpenVaishnavi Talawar asked 3 years ago • Java
228 views0 answers0 votes
Between HashSet and TreeSet collections in Java, which one is better?
OpenVaishnavi Talawar asked 3 years ago • Java
265 views0 answers0 votes
What are the benefits of using an unordered array over an ordered array?
OpenVaishnavi Talawar asked 3 years ago • Java
356 views0 answers0 votes
What is the difference between a process and a thread in Java?
OpenVaishnavi Talawar asked 3 years ago • Java
166 views0 answers0 votes
Why Collection interface doesn’t extend Cloneable and Serializable interfaces?
OpenVaishnavi Talawar asked 3 years ago • Java
298 views0 answers0 votes
What are the different ways to sort a collection in Java?
OpenVaishnavi Talawar asked 3 years ago • Java
262 views0 answers0 votes
What is the difference between pass by reference and pass by value?
OpenVaishnavi Talawar asked 3 years ago • Java
187 views0 answers0 votes
Between Enumeration and Iterator, which one has better performance in Java?
OpenVaishnavi Talawar asked 3 years ago • Java
167 views0 answers0 votes
What is the difference between DOM and SAX parser in Java?
OpenVaishnavi Talawar asked 3 years ago • Java
172 views0 answers0 votes
Between two types of dependency injections, constructor injection and setter dependency injection, which one is better?
OpenVaishnavi Talawar asked 3 years ago • Java
186 views0 answers0 votes
Is it ok to use random numbers in the implementation of hashcode() method in Java?
OpenVaishnavi Talawar asked 3 years ago • Java
179 views0 answers0 votes
How can we print an Array in Java?
OpenVaishnavi Talawar asked 3 years ago • Java
232 views0 answers0 votes
In Java, can two equal objects have the different hash code?
OpenVaishnavi Talawar asked 3 years ago • Java
170 views0 answers0 votes
What is the difference between the expressions String s = “Temporary” and String s = new String(“Temporary “)? Which one is better and more efficient?
OpenVaishnavi Talawar asked 3 years ago • Java
215 views0 answers0 votes
How can you check if a String is a number by using regular expression?
OpenVaishnavi Talawar asked 3 years ago • Java
163 views0 answers0 votes
Your client is complaining that your code is throwing NoClassDefFoundError or NoSuchMethodError, even though you are able to compile your code without error and method exists in your code. What could be the reason behind this?
OpenVaishnavi Talawar asked 3 years ago • Java
179 views0 answers0 votes
Why do we use static initializers in Java?
OpenVaishnavi Talawar asked 3 years ago • Java
167 views0 answers0 votes
Do you think Java Enums are more powerful than integer constants?
OpenVaishnavi Talawar asked 3 years ago • Java
285 views0 answers0 votes
What is the use of method references in Java?
OpenVaishnavi Talawar asked 3 years ago • Java
217 views0 answers0 votes
What are the situations in which you choose HashSet or TreeSet?
OpenVaishnavi Talawar asked 3 years ago • Java
256 views0 answers0 votes
What are the different types of Classloaders in Java?
OpenVaishnavi Talawar asked 3 years ago • Java
279 views0 answers0 votes
How do you decide which type of Inner Class – Static or Non-Static to use in Java?
OpenVaishnavi Talawar asked 3 years ago • Java
216 views0 answers0 votes
Can you catch an exception thrown by another thread in Java?
OpenVaishnavi Talawar asked 3 years ago • Java
247 views0 answers0 votes
What is the difference between poll() and remove() methods of Queue in Java?
OpenVaishnavi Talawar asked 3 years ago • Java
409 views0 answers0 votes
Why do you use volatile keyword in Java?
OpenVaishnavi Talawar asked 3 years ago • Java
238 views0 answers0 votes
You have a character array and a String. Which one is more secure to store sensitive data (like password, date of birth, etc.)?
OpenVaishnavi Talawar asked 3 years ago • Java
259 views0 answers0 votes
Explain the difference between fail-fast and fail-safe iterators?
OpenVaishnavi Talawar asked 3 years ago • Java
257 views0 answers0 votes
What is a compile time constant in Java?
OpenVaishnavi Talawar asked 3 years ago • Java
223 views0 answers0 votes
What is the relation between x.hashCode() method and x.equals(y) method of Object class?
OpenVaishnavi Talawar asked 3 years ago • Java
217 views0 answers0 votes
How can you guarantee that the garbage collection takes place?
OpenVaishnavi Talawar asked 3 years ago • Java
208 views0 answers0 votes
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