Recent questions in JAVA

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1 answer

Is it possible for two unequal objects to have the same hashcode?

asked Jan 27, 2020 in JAVA by rahuljain1

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1 answer

What is default size of ArrayList and HashMap in Java?

asked Jan 27, 2020 in JAVA by rahuljain1

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1 answer

Can I write my own container class and use it in the for-each loop?

asked Jan 27, 2020 in JAVA by rahuljain1

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1 answer

Write code to remove elements from ArrayList while iterating?

asked Jan 27, 2020 in JAVA by rahuljain1

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1 answer

How HashSet works internally in Java?

asked Jan 27, 2020 in JAVA by rahuljain1

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2 answers

What is the difference between Hashtable and HashMap?

asked Jan 27, 2020 in JAVA by rahuljain1

0 votes

1 answer

Which kind of tree is used to implement TreeMap in Java?

asked Jan 27, 2020 in JAVA by rahuljain1

0 votes

1 answer

LinkedList in Java is doubly or singly linked list?

asked Jan 27, 2020 in JAVA by rahuljain1

+1 vote

1 answer

How do you print Array in Java?

asked Jan 27, 2020 in JAVA by rahuljain1

0 votes

1 answer

What is a couple of ways that you could sort a collection?

asked Jan 27, 2020 in JAVA by rahuljain1

0 votes

1 answer

Difference between ArrayList and LinkedList in Java?

asked Jan 27, 2020 in JAVA by rahuljain1

+1 vote

1 answer

The difference between LinkedHashMap and PriorityQueue in Java?

asked Jan 24, 2020 in JAVA by rahuljain1

+1 vote

1 answer

Difference between poll() and remove() method?

asked Jan 24, 2020 in JAVA by rahuljain1

+1 vote

1 answer

The difference between List, Set, Map, and Queue in Java?

asked Jan 24, 2020 in JAVA by rahuljain1

+1 vote

1 answer

What is a compile time constant in Java? What is the risk of using it?

asked Jan 24, 2020 in JAVA by rahuljain1

+1 vote

1 answer

Difference between final, finalize and finally?

asked Jan 24, 2020 in JAVA by rahuljain1

+1 vote

1 answer

What is a.hashCode() used for? How is it related to a.equals(b)?

asked Jan 24, 2020 in JAVA by rahuljain1

+2 votes

1 answer

What's the difference between "a == b" and "a.equals(b)"?

asked Jan 24, 2020 in JAVA by rahuljain1

+1 vote

2 answers

What is the difference between stack and heap in Java?

asked Jan 24, 2020 in JAVA by rahuljain1

+2 votes

1 answer

How do you find memory usage from Java program? How much percent of the heap is used?

asked Jan 24, 2020 in JAVA by rahuljain1

+1 vote

1 answer

Can you guarantee the garbage collection process?

asked Jan 24, 2020 in JAVA by rahuljain1

+1 vote

1 answer

Explain Java Heap space and Garbage collection?

asked Jan 24, 2020 in JAVA by rahuljain1

+1 vote

1 answer

What is the difference between JRE, JDK, JVM and JIT?

asked Jan 24, 2020 in JAVA by rahuljain1

+1 vote

1 answer

What is the maximum heap size of 32-bit and 64-bit JVM?

asked Jan 24, 2020 in JAVA by rahuljain1

+2 votes

1 answer

How do you find if JVM is 32-bit or 64-bit from Java Program?

asked Jan 24, 2020 in JAVA by rahuljain1

+1 vote

1 answer

What is -XX:+UseCompressedOops JVM option? Why use it?

asked Jan 24, 2020 in JAVA by rahuljain1

+1 vote

1 answer

How do WeakHashMap works?

asked Jan 24, 2020 in JAVA by rahuljain1

+1 vote

1 answer

A difference between WeakReference and SoftReference in Java?

asked Jan 24, 2020 in JAVA by rahuljain1

+1 vote

1 answer

What is the size of an int variable in 32-bit and 64-bit JVM?

asked Jan 24, 2020 in JAVA by rahuljain1

+1 vote

1 answer

What is The difference between Serial and Parallel Garbage Collector?

asked Jan 24, 2020 in JAVA by rahuljain1

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Recent questions in JAVA

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