Core Java String Handling Building from concepts to implementation of doubly linked lists
Software Engineer Senior Java Developer Interview Questions
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1) Find min max in an array 2) Reverse an array 3) Thread related questions. 4) Why string is immutable?
What are new features which got introduced in Java 8?
1st Sortlist resume 2nd Technical Round- Core Java, Collection,Stream Api, Spring boot, logical - frequency stream api 3rd Round - Machine Round 2 Problem- Given a String find the 1st non repeat charcter 2nd- count unique character within a String
Data structures
Given a string s containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. An input string is valid if: Open brackets must be closed by the same type of brackets. Open brackets must be closed in the correct order. Every close bracket has a corresponding open bracket of the same type. Example 1: Input: s = "()" Output: true Example 2: Input: s = "()[]{}" Output: true Example 3: Input: s = "(]" Output: false Example 4: Input: s = "([])" Output: true Given an array of size N filled with numbers from 1 to N-1 in random order. The array has only one repetitive element. The task is to find the repetitive element. Examples: Input: a[] = {1, 3, 2, 3, 4} Output: 3 Explanation: The number 3 is the only repeating element. Input: a[] = {1, 5, 1, 2, 3, 4} Output: 1 Brute Force To Optimization
Given an array of integers find a second lowest integer
Best average score Find whats the bug in the given code.(related to tree)
Java Streams DB queries Arrays
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