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3,830 junior java developer interview questions shared by candidates

Asked questions on multi threading implement it. Why string is immutable and find the number of times an alphabet a is in aashdit Join statement from db, given two tables join them based on their pk. Sorting an array without using pre defined methods. And many theory based and project based questions. The interview was about 1.5 hrs followed by aptitude round and HR round.

Junior Java Developer

Interviewed at Aashdit Technologies

3.5★
Jun 15, 2024

Asked questions on multi threading implement it. Why string is immutable and find the number of times an alphabet a is in aashdit Join statement from db, given two tables join them based on their pk. Sorting an array without using pre defined methods. And many theory based and project based questions. The interview was about 1.5 hrs followed by aptitude round and HR round.

difference between abstract vs. interface -Why we don't use multiple inheritance in abstract(ambiguity) method overloading and overriding difference between equals and comparator Internal working of hashmap What is hashcode and equals interviews want person who knows more about big data and cloud -spark -lambda(how to use it) - IAM -s3Bucket (how to put, add, what is a query in it , how to see documents count and how to search in it) - EC2 instance -Jenkins Program 1- Input - aaabbccdddd Output - a3b2c2d4 Program 2 - Bubble sort SQL- constraint in sql Update the salary of employe Aggerate function find max salary each department difference between having and group by from each department first 3 highest salary p.s - No question on java 8, design pattern , spring boot
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Junior Java Developer

Interviewed at Clairvoyant

3.9★
Sep 12, 2023

difference between abstract vs. interface -Why we don't use multiple inheritance in abstract(ambiguity) method overloading and overriding difference between equals and comparator Internal working of hashmap What is hashcode and equals interviews want person who knows more about big data and cloud -spark -lambda(how to use it) - IAM -s3Bucket (how to put, add, what is a query in it , how to see documents count and how to search in it) - EC2 instance -Jenkins Program 1- Input - aaabbccdddd Output - a3b2c2d4 Program 2 - Bubble sort SQL- constraint in sql Update the salary of employe Aggerate function find max salary each department difference between having and group by from each department first 3 highest salary p.s - No question on java 8, design pattern , spring boot

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