OOP, Collectins, Multithreading, writing SQL queries, Spring
Jr Java Developer Interview Questions
3,800 jr java developer interview questions shared by candidates
What is cyber security to you?
Previous Experience and Projects? OOPS concepts? Spring basic concepts? code: write a function to check if the string is a palindrome?
2. Why is Java not a pure object oriented language? Java supports primitive data types - byte, boolean, char, short, int, float, long, and double and hence it is not a pure object oriented language. 3. Difference between Heap and Stack Memory in java. And how java utilizes this. Stack memory is the portion of memory that was assigned to every individual program. And it was fixed. On the other hand, Heap memory is the portion that was not allocated to the java program but it will be available for use by the java program when it is required, mostly during the runtime of the program.
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About project and experience and skills
Lets say we have a banking application and on a daily basis we get around 5 million transactions by considering this what kind of Multithreading design pattern would you choose & why?
Give pseudo code solution dealing with a 2D array (Contiguous Islands Leet Code question).
What is the meaning of wild pointer？
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