Core java tricky questions!

• How to find largest and smallest number in array? (solution)
• How to find prime factors of an integer in Java? (solution)
• How to check if LinkedList contains any cycle in Java? (solution)
• Write a Program remove duplicates from array without using Collection API? (program)
• How to reverse String in Java without using API methods? (Solution)
• Write a method to check if two String are Anagram of each other? (method)
• Write a function to find middle element of linked list in one pass? (solution)
• How to solve Producer Consumer Problem in Java. (solution)
• Write a program to find first non repeated characters from String in Java? (program)
• How to check if a number is binary in Java? (answer)
• Write a Program to Check if a number is Power of Two or not? (program)
• Write a program to check if a number is Prime or not? (solution)
• Write a method to count occurrences of  a character in String? (Solution)
• How to find Fibonacci sequence upto a given Number? (solution)
• How to check if a number is Armstrong number or not? (solution)
• Write a method to remove duplicates from ArrayList in Java? (Solution)
• Write a program to check if a number is Palindrome or not? (program)
• Write a program to check if Array contains duplicate number or not? (Solution)
• How to calculate Sum of Digits of a number in Java? (Solution)
• How to prevent Deadlock in Java? (solution)
• How to find largest prime factor of a number in Java? (solution)
• How to calculate factorial using recursion in Java? (algorithm)
• How to declare and initialize two dimensional array in Java? (solution)
• Write a program to find missing number in a sorted array? (algorithm)
• How to search element in array in Java? (solution)
• 10 Points about Array in Java? (must know facts)
• How to find top two maximum on integer array in Java? (solution)
• How to sort array using bubble sort algorithm? (algorithm)