All Reasoning Topic Interview questions and answer

All Reasoning Topic Interview questions and answer 

• Arrangements
• Syllogisms or Statements and Conclusions
• Cubes
• Binary Logic
• Calendars
• Clocks
• Directions
• Blood Relations
• Logical Consistency
• Evaluating inferences
• Forcefulness of Arguments
• Assumptions
• Number series
• Puzzles
• Non - verbal reasoning(Series)
• Non - verbal reasoning(Analogy)
• Introduction to Logic

Java Interview Programs And solutions List For freshers and experiences

Java Interview Programs And solutions

In this section, we are giving few java interview programs faced by some of my friends. If you come across any questions, post it to me. I can provide solutions.

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   List Of All Interview Programs:
   How to reverse Singly Linked List?
2. Find out duplicate number between 1 to N numbers.
3. Find out middle index where sum of both ends are equal.
4. Write a singleton class.
5. Write a program to create deadlock between two threads.
6. Write a program to reverse a string using recursive algorithm.
7. Write a program to reverse a number.
8. Write a program to convert decimal number to binary format.
9. Write a program to find perfect number or not.
10. Write a program to implement ArrayList.
11. Write a program to find maximum repeated words from a file.
12. Wrie a program to find out duplicate characters in a string.
13. Write a program to find top two maximum numbers in a array.
14. Write a program to sort a map by value.
15. Write a program to find common elements between two arrays.
16. How to swap two numbers without using temporary variable?
17. Write a program to print fibonacci series.
18. Write a program to find sum of each digit in the given number using recursion.
19. Write a program to check the given number is a prime number or not?
20. Write a program to find the given number is Armstrong number or not?
21. Write a program to convert binary to decimal number.
22. Write a program to check the given number is binary number or not?
23. Write a program for Bubble Sort in java.
24. Write a program for Insertion Sort in java.
25. Write a program to implement hashcode and equals.
26. How to get distinct elements from an array by avoiding duplicate elements?
27. Write a program to get distinct word list from the given file.
28. Write a program to get a line with max word count from the given file.
29. Write a program to convert string to number without using Integer.parseInt() method.
30. Write a program to find two lines with max characters in descending order.
31. Write a program to find the sum of the first 1000 prime numbers.
32. Find longest substring without repeating characters.
33. Write a program to remove duplicates from sorted array.
34. How to sort a Stack using a temporary Stack?

Find out duplicate number between 1 to N numbers.

Description:

You have got a range of numbers between 1 to N, where one of the number is repeated. You need to write a program to find out the duplicate number.

Code:

? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 package com.govindsblog.algos;   import java.util.ArrayList; import java.util.List;   public class DuplicateNumber {       public int findDuplicateNumber(List<Integer> numbers){                   int highestNumber = numbers.size() - 1;         int total = getSum(numbers);         int duplicate = total - (highestNumber*(highestNumber+1)/2);         return duplicate;     }           public int getSum(List<Integer> numbers){                   int sum = 0;         for(int num:numbers){             sum += num;         }         return sum;     }           public static void main(String a[]){         List<Integer> numbers = new ArrayList<Integer>();         for(int i=1;i<30;i++){             numbers.add(i);         }         //add duplicate number into the list         numbers.add(22);         DuplicateNumber dn = new DuplicateNumber();         System.out.println("Duplicate Number: "+dn.findDuplicateNumber(numbers));     } }

Output:

Duplicate Number: 22