Difference between abstract and interface
Java Software Developer Interview Questions
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Sort an array in a way frequency first eg. you have 2 3 2 1 4 5 1 you need to give 3 4 5 1 1 2 2 because 3 4 5 is only once then 1 is twice, 2 is twice.
Write a program to reverse a string without using string reverse function
what is string ?
Hashmap internal working?
Sorting, Switch Case, Code from array, String
1. Search an element in an array 2. Reverse a String 3.last one is - input = abdul KaLam aAJaD Output = A.K.Aajad
Can you explain difference in HashMap n Concurrent HashMap ?
spring spring boot que
puzzles....and what ever they know.
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