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Ingegnere Del Software Java Interview Questions

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Round 1: Test with one person sitting in MS teams - 5 MCQ,2 Java Code , 1 SQL query(easy) 1. first non-recurring character of string 2. given candles and wax of burned candle. if( 4 candle's burned wax then 4) return number of candles that can be burned with given waxes. (was tricky one but did trial and error using ip/op) Round 2: F2F Internal working Hashmap. Can class be used as Key. coding: split array in K sizes Multithreading on Object Level Lock and Class level Lock. Deck of cards problem to solve. Easy SQL query 3rd Round : he wanted one Data structure so that he will provide range of Date and wanted me to return all the students who birthday come in that range 2. Code remove duplicates from sorted array without using extra space. (in-place) 3. Multithreading code to print : thread1 - 1 thread2- 2 thread3- 3 thread1-4 likewise Easy SQL query with aggregate function
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Java Software Engineer

Interviewed at Wissen

3.9★
Mar 2, 2024

Round 1: Test with one person sitting in MS teams - 5 MCQ,2 Java Code , 1 SQL query(easy) 1. first non-recurring character of string 2. given candles and wax of burned candle. if( 4 candle's burned wax then 4) return number of candles that can be burned with given waxes. (was tricky one but did trial and error using ip/op) Round 2: F2F Internal working Hashmap. Can class be used as Key. coding: split array in K sizes Multithreading on Object Level Lock and Class level Lock. Deck of cards problem to solve. Easy SQL query 3rd Round : he wanted one Data structure so that he will provide range of Date and wanted me to return all the students who birthday come in that range 2. Code remove duplicates from sorted array without using extra space. (in-place) 3. Multithreading code to print : thread1 - 1 thread2- 2 thread3- 3 thread1-4 likewise Easy SQL query with aggregate function

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