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What are the situations in which you choose HashSet or TreeSet?
OpenVaishnavi Talawar asked 4 years ago • Java
276 views0 answers0 votes
What are the different types of Classloaders in Java?
OpenVaishnavi Talawar asked 4 years ago • Java
320 views0 answers0 votes
How do you decide which type of Inner Class – Static or Non-Static to use in Java?
OpenVaishnavi Talawar asked 4 years ago • Java
239 views0 answers0 votes
Can you catch an exception thrown by another thread in Java?
OpenVaishnavi Talawar asked 4 years ago • Java
275 views0 answers0 votes
What is the difference between poll() and remove() methods of Queue in Java?
OpenVaishnavi Talawar asked 4 years ago • Java
438 views0 answers0 votes
Why do you use volatile keyword in Java?
OpenVaishnavi Talawar asked 4 years ago • Java
255 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 4 years ago • Java
289 views0 answers0 votes
Explain the difference between fail-fast and fail-safe iterators?
OpenVaishnavi Talawar asked 4 years ago • Java
280 views0 answers0 votes
What is a compile time constant in Java?
OpenVaishnavi Talawar asked 4 years ago • Java
254 views0 answers0 votes
What is the relation between x.hashCode() method and x.equals(y) method of Object class?
OpenVaishnavi Talawar asked 4 years ago • Java
243 views0 answers0 votes
How can you guarantee that the garbage collection takes place?
OpenVaishnavi Talawar asked 4 years ago • Java
232 views0 answers0 votes
what-is-the-difference-between-x-y-and-x-equalsy-expressions-in-java
OpenVaishnavi Talawar asked 4 years ago • Java
236 views0 answers0 votes
How can we find the memory usage of JVM from Java code?
OpenVaishnavi Talawar asked 4 years ago • Java
288 views0 answers0 votes
How can you do constructor chaining in Java?
OpenVaishnavi Talawar asked 4 years ago • Java
330 views0 answers0 votes
When creating an abstract class, is it a good idea to call abstract methods inside its constructor?
OpenVaishnavi Talawar asked 4 years ago • C#_language
295 views0 answers0 votes
Can we use multiple main methods in same class?
OpenVaishnavi Talawar asked 4 years ago • Java
284 views0 answers0 votes
Can we use String in the switch case statement in Java?
OpenVaishnavi Talawar asked 4 years ago • Java
202 views0 answers0 votes
Out of an int and Integer, which one takes more memory?
OpenVaishnavi Talawar asked 4 years ago • Java
215 views0 answers0 votes
What will this return 5*0.1 == 0.5? true or false?
OpenVaishnavi Talawar asked 4 years ago • Java
376 views0 answers0 votes
In Java, can we store a double value in a long variable without explicit casting?
OpenVaishnavi Talawar asked 4 years ago • Java
298 views0 answers0 votes
Can you cast an int variable into a byte variable? What happens if the value of int is larger than byte?
OpenVaishnavi Talawar asked 4 years ago • Java
375 views0 answers0 votes
How will you take thread dump in Java?
OpenVaishnavi Talawar asked 4 years ago • Java
406 views0 answers0 votes
Which class contains clone method? Cloneable or Object class?
OpenVaishnavi Talawar asked 4 years ago • Java
271 views0 answers0 votes
What is the difference between StringBuffer and StringBuilder?
OpenVaishnavi Talawar asked 4 years ago • Java
248 views0 answers0 votes
What is difference between CyclicBarrier and CountDownLatch class?
OpenVaishnavi Talawar asked 4 years ago • Java
316 views0 answers0 votes
How can you convert an Array of bytes to String?
OpenVaishnavi Talawar asked 4 years ago • Java
242 views0 answers0 votes
Can you create an Immutable object that contains a mutable object?
OpenVaishnavi Talawar asked 4 years ago • Java
385 views0 answers0 votes
What is the difference between sleep() and wait() methods in Java?
OpenVaishnavi Talawar asked 4 years ago • Java
335 views0 answers0 votes
What is a thread local variable in Java?
OpenVaishnavi Talawar asked 4 years ago • Java
222 views0 answers0 votes
How can you mark an array volatile in Java?
OpenVaishnavi Talawar asked 4 years ago • Java
414 views0 answers0 votes
Let say there is a method that throws NullPointerException in the superclass. Can we override it with a method that throws RuntimeException?
OpenVaishnavi Talawar asked 4 years ago • Java
226 views0 answers0 votes
How can you access a non-static variable from the static context?
OpenVaishnavi Talawar asked 4 years ago • Java
214 views0 answers0 votes
Is ++ operation thread-safe in Java?
OpenVaishnavi Talawar asked 4 years ago • Java
219 views0 answers0 votes
How can you do multiple inheritances in Java?
OpenVaishnavi Talawar asked 4 years ago • Java
268 views0 answers0 votes
What is the right data type to represent Money (like Dollar/Pound) in Java?
OpenVaishnavi Talawar asked 4 years ago • Java
273 views0 answers0 votes
How can you determine if JVM is 32-bit or 64-bit from Java Program?
OpenVaishnavi Talawar asked 4 years ago • Java
325 views0 answers0 votes
How can you make sure that N threads can access N resources without deadlock?
OpenVaishnavi Talawar asked 4 years ago • Java
255 views0 answers0 votes
What happens when you put a key object in a HashMap that is already present?
OpenVaishnavi Talawar asked 4 years ago • Java
252 views0 answers0 votes
Does Java allow you to override a private or static method?
OpenVaishnavi Talawar asked 4 years ago • Java
361 views0 answers0 votes
Can we use multiple main methods in multiple classes?
OpenVaishnavi Talawar asked 4 years ago • Java
407 views0 answers0 votes
What does the expression 1.0 / 0.0 return? Will there be any compilation error?
OpenVaishnavi Talawar asked 4 years ago • Java
346 views0 answers0 votes
Is there any difference between a = a + b and a += b expressions?
OpenVaishnavi Talawar asked 4 years ago • Java
264 views0 answers0 votes
What are the main differences between an interface with default method and an abstract class in Java 8? Java Tricky Questions
OpenVaishnavi Talawar asked 4 years ago • Java
205 views0 answers0 votes
What is the target type of a lambda expression?
OpenVaishnavi Talawar asked 4 years ago • Java
353 views0 answers0 votes
What is the type of a Lambda expression in Java 8?
OpenVaishnavi Talawar asked 4 years ago • Java
410 views0 answers0 votes
What is a StringJoiner in Java 8?
OpenVaishnavi Talawar asked 4 years ago • Java
262 views0 answers0 votes
what-are-the-popular-annotations-introduced-in-java-8
OpenVaishnavi Talawar asked 4 years ago • Java
235 views0 answers0 votes
What are the new JVM arguments introduced by Java 8?
OpenVaishnavi Talawar asked 4 years ago • Java
241 views0 answers0 votes
How can we analyze the dependencies in Java classes and packages?
OpenVaishnavi Talawar asked 4 years ago • Java
274 views0 answers0 votes
It is possible to define a static method in an Interface?
OpenVaishnavi Talawar asked 4 years ago • Java
248 views0 answers0 votes
How can we get current time by using Date/Time API of Java 8?
OpenVaishnavi Talawar asked 4 years ago • Java
192 views0 answers0 votes
Which method in Optional provides the fallback mechanism in case of null value?
OpenVaishnavi Talawar asked 4 years ago • Java
272 views0 answers0 votes
What are the uses of Optional?
OpenVaishnavi Talawar asked 4 years ago • Java
269 views0 answers0 votes
What is Optional in Java 8?
OpenVaishnavi Talawar asked 4 years ago • Java
255 views0 answers0 votes
How can you get the name of Parameter in Java by using reflection?
OpenVaishnavi Talawar asked 4 years ago • Java
206 views0 answers0 votes
Can we access a static method of an interface by using reference of the interface?
OpenVaishnavi Talawar asked 4 years ago • Java
410 views0 answers0 votes
If we create same method and define it in a class , in its parent class and in an interface implemented by the class, then definition will be invoked if we access it using the reference of Interface and the object of class?
OpenVaishnavi Talawar asked 4 years ago • Java
282 views0 answers0 votes
In case we create a class that extends a base class and implements an interface. If both base class and interface have a default method with the same name and arguments, then which definition will be picked by JVM?
OpenVaishnavi Talawar asked 4 years ago • Java
296 views0 answers0 votes
How Java 8 supports Multiple Inheritance?
OpenVaishnavi Talawar asked 4 years ago • Java
320 views0 answers0 votes
Can we create a class that implements two Interfaces with default methods of same name and signature?
OpenVaishnavi Talawar asked 4 years ago • Java
430 views0 answers0 votes
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