## Infosys Interview Questions

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what is the difference between internal repository and internet repository?

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what about your project performance...how can i answer this question?

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How to convert http to https in java....can anyone knows please tell me?

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`public class Gen { public static void main(String[] args) { Integer i1 = new Integer(1); Integer i2 = new Integer(1); System.out.println(i1 != i2); System.out.println(i1 <= i2); System.out.println(i1 >= i2); } }`

WHY THE OUTPUT IS TRUE IN ALL CASES?

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Consider an array which may contains the alphabets from A to Z.

suppose consider the below examples

A[9] = {A,C,D,G,D,E,A,C,A}; then the output should be in the format of A=3;C=2;D=2;E=1;G=1

A[9] = {A,B,D,C,D,B,A,B,A}; then the output should be in the format of A=3;B=3;C=1;D=2

write the logic in C. the values in array may vary. the output should count the alphabets in the array

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Suppose an array contains below values

A = {A,B,C,B,A,C,A,B,C,A} then the output should display in the below format

A=4;B=3;C=3

Could you please send the logic for the above question in C ?

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quicksort using divide and counquer . Need code please java

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The bin packing problem is an example of a wide set of problems. The task is to find how many set sized bins are required to hold a number of differently sized boxes. How many bins (10 units high) are required to contain the following boxes (1,3,4 and 5 units high)?

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Write a program to calculate the Loan Balance, where a person borrows an amount A and in return he/she agrees to make N payments per year, each of amount P. While the person is repaying the loan, interest will accumulate at an annual percentage rate of R, and this interest will be compounded N times a year (along with each payment). Therefore, the person must continue paying these installments of amount P until the original amount and any accumulated interest is repaid.

NOTE: The formula to calculate the amount that the person needs to repay after T years is -

Balance Amount after T years = A[(1+R/N)^NT]-P

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Given a list L of integers, a1 , a2 , . . . , an , and an integer M , describe an algorithm that finds the largest

subset of L whose sum is at most M . Your algorithm should run in linear time

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`int[] array = {3,-1,-2,2,2,3,2,-6,2,3,-8,0,2}; out put needed : {3,2,2,3,2,2,3,0,2,-1,-2,-6,-8} order is maintained and -ve numbers are sent to rightmost in order.`

Design a code with single iteration to do it.

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How will you find out size of a variable without using sizeof ();

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what does the yeild method do in case of a thread lifecycle ? Explain with a neat example demonstrating the use of yield method?

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`c++`

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find all the subset of an array having integers from 1 to 9 such that sum of each subset is 10.

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You are given an array say

5,4,2,7,9,6

You need to convert it to a sorted array in minimum operation where only operation allowed is decrement.

For example above array becomes

2,2,2,6,6,6 (operations=9)

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what is the maximum number of binary trees that can be formed using 3 unlabeled nodes ? explain..

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Given two integers A & B. Determine how many bits required to convert A to B. Write a function

int BitSwapReqd(int A, int B);

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write a program to check if the tree is BST

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Write a program to generate a mirror (copy) of the binary tree without using recursion.

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There are 3 societies a, b, and c. A lent tractors to B and C as many as they had. After some time B gave as many tractors to A and C as many as they have. After sometime c did the same thing. At the end of this transaction each one of them had 24.

Find the tractors each originally had.

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Three friends divided some bullets equally. After all of them shot 4 bullets the total no. of remaining bullets is equal to that of one has after division. Find the original number divided.

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Write an algo to exchange the elements of secondary digonal of a matrix.

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How many ways can you paint a cube if you have three colors of paint?

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What is the benefit of using StringBuffer?

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What log file can you refer to for determining if a JUnit test failed?

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How does Struts implement MVC?

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In Java, if we insert a return statement inside the try block of a try-catch-finally, will the finally block still get executed?

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Other questions as came up during the conversation ... total of 45 minutes on the phone. Informed me that HR will be in touch for a 2nd technical interview.

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What other design patterns have you been exposed to?