Pattern of PostgreSQL database development
Software Engineer Software Developer Interview Questions
3,281 software engineer software developer interview questions shared by candidates
1st Technical Round: 1. Method overriding rules? 2. Output? • //classes will compile fine bcos both r throwing run time exceptions • class TestOverride { • void solution() throws NullPointerException { • System.out.println("super"); • } • } • • class TestSubOverride extends TestOverride { • void solution() throws RuntimeException { • System.out.println("sub"); • } • } 2. Given array {4,5,6,1,2,4}; how do u search particular element ex:1? Ans: he was looking for best search algorithm – ans is binary search algorithm 3. Consider I have huge data which is stored randomly, which data structure is best for retrieval with performance of O(1)? Ans: Hashmap bcos of performance O(1) always 4. Write a code to delete a node from LinkedList 5. Write a simple code for Threading. 6. What is difference between callable and Runnable? 7. What is functional interface? 8. Why functional interface should have only one abstract method why not more than one? 9. When we use lamda expressions? 10. What is difference between IOC and dependency injection? 11. Why do we need dependency injection? 12. Scopes of bean in spring? 2nd Technical Round: 1. Why Java is so popular? In depth answer 2. Given Name, write code to print all combinations using that. 3. Given array, {1,2,3,4,5,6,7,8} and {4,1,2,5,1,2,3,4,5,6,7,8}, at any given position how do you find out array is sorted or not. (Circular sorting)
What is the Reactive Programming concept?
Assume a list of numbers from 1 to 10. Use Java Stream to filter out even numbers out of this list
DFS problem, give minimum number of coins for a given amount (amount 55 cents, given 1 coin of 50 cents + 1 coin on 5 cents)
The questions were related to Collections, ArrayList, OOPs Concepts.
Describe some features of Java 11
1. Basic JavaScript questions. 2. Basic Node question 3. Agile process, Project architecture
Basics Java questions Hashmap implementation
Array questions and loops in java
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