100+ Application Developer interview questions | Application Developer question and answer- Just Crack Interview

Ques:- PUZZLE : one circle (radius r) is drawn.You are throwing a stone in it than what is the probability that stone lies near the center?

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Ques:- Suppose in an abstract class a function called x(), AND there is another function with the same name in its derived class.Now create pointer for the abstract class, point it to the derived class object

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Ques:- What is the difference between window os and ubuntu

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Ques:- What is the difference between heap sorting and insertion sorting

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Ques:- Write code for Towers of Hanoi problem

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Ques:- Difference between semaphore and mutex

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Ques:- There are 25 horses and only 5 horses can be raced at a time and the top 3 are announced in each such race. What is the minimum number of races required to find the top 3 among 25 horses

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Ques:- Engine is of length 12m. A and B are 2 bogies of 10m length each. Engine can turn only in obtuse angles but not in acute angle. For example Engine can turn as FEH but not as FEA. Now, the task is that I have to exchange the positions of A and B with the help of Engine and the engine should remain at the same place. I tried for 15 minutes but couldnÂ’t solve this problem

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Ques:- Puzzle: Given 10 coins, arrange them such that we get 4 different rows each containing 4 coins

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Ques:- Provided a string a character and a count, you have to print the string after the specified character has occurred count number of times. Ex: String: Â“This is demo stringÂ” Character: Â‘iÂ’ Count: 3 Output: Â“ngÂ” However, solving this one must take care of corner case when character is not in string or its not in string count number of times etc

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Ques:- Design a website similar to bookmyshow.com for booking cinema tickets but it must be for a single location only which can have multiple theatres in it. In this he wanted me to design a basic rough GUI, relevant database tables and linking GUI to database and also showing the whole data flow in system. Site must also provide features like advance booking, user login, user registration, movie rating option, saving card details etc

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Ques:- Code: Â– Given the value of a starting position and an ending position, you have to reach from start to end in a linear way, and you can move either to position immediate right to current position or two step right to the given position. You have the print all the possible path to reach from start to destination. (DP)

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Ques:- You are provided a CSV (Comma Separated Values) in file like E1:12, E2:32 etc. You have to generate a tree with maximum height 3 only with the given values in the following manner : E is the root of tree having n nodes to E1, E2, E3 Â… En. E1, have n nodes E11, E12, E13 Â… E1n, this is how things go on second level. Similarly for E111 types of element will be modelled. Restrictions : You can read file only once , you must take care of the fact that if E1 is not in file but say E11 is there you must not include it

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Ques:- Code :- A simple C program to reverse the words in a string , like if string is “Oracle @ App DevÂ”, then it should become Â“Dev App @ OracleÂ”

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Ques:- Puzzle: Â– Two persons X and Y are sitting side by side with a coin in eachÂ’s hand. The game is to simultaneously flip the coin till anyone wins. Player X will win if he gets a consecutive HEAD, TAIL however Y will win if he gets a consecutive HEAD, HEAD. Now you have to tell is the game fair or not

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Ques:- 1 puzzle – In a truck, we can load max. 1000kg, we have 2 types of bags – 15kg, 25kg. The difference between number of bags of each type can be max. 4 . Find an optimum loading

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Ques:- Write a code for inserting two numbers in a text file given n2>n1 and the next entry should not be overlapping like if first was 4,6 next can’t be 5,7.the second n1 has to be greater than first n2

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Ques:- There are five glasses that are kept upside down.At a time you are bound to turn four glasses.Give minimum number of times in which you can turn back all the glasses so that now none among them are upside down

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Ques:- Explain multitasking and multiprogramming

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Ques:- In a bag you have 20 black balls and 16 red balls.When you take out 2 black balls you take another white ball.If you take 2 white balls then you take out 1 black ball and if balls are of different color you take out another black ball.If you continue doing this what is the last ball that will be left

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