Reverse a string in-place.
Developer Associate Interview Questions
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String,String buffer,String builder difference. Can u write your own immutable class n how? hashmap implementation and hashcode(),equals() method he asked me to write 2 logical testing programs with reduced complexity( 0,1,1,2,4,5,3,3,1,0,1 traverse once only n get the duplicate number's along with the count). printing pascal triangle duplicate letter from a string with less complexity reversing words of string individually(this is a tree---o/p: siht si a eert)
Varied behavioral questions. Technical focused on oops concepts(explain 4 pillars of OOP with examples). Was asked to write code to print the largest number in an unsorted integer array of infinite size. Although the position was for C#, they were cool about me coding in java.
if p1 and p2 are two consecutive prime number, in which cases (p1 + p2) / 2 is a prime number.
Given a text file containing the text for Hamlet (/usr/share/file.txt), return the top 5 most frequent words with count.
Implement the MyStack. (A lot of questions about multi-threading) @protocol Stack -(void)pushObject:(nonnull id)obj; -(nonnull id)popObjext; @property(nonatomic,assign)NSInteger count; @end @interface MyStack : NSObject <Stack> @end @implementation MyStack @end
There are 4 people who want to cross a bridge. They each take 1, 2, 5 and 8 minutes. Only 2 people can cross at a time and they take as long as the slowest person. What is the fastest time you can get everyone across? Then I was asked to write the mathematical equation to determine the trade-off point between each of the 2 approaches to solving this.
Find count of unique characters in a given string
Find the nth element in a linked list in constant time and space.
Imagine you have a string and you want to return False if there are repeat characters in this string, what are the fastest and most space efficient ways to do this. (I clarified and he only wanted to return False if there was a repeat letter or number)
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