What Type Of Coding Questions Will Be Asked In An Interview?

• How do you reverse a string in Java? ...
• How do you determine if a string is a palindrome? ...
• Find the number of occurrences of a character in a String? ...
• How to find out if the given two strings are anagrams or not? ...
• How do you calculate the number of vowels and consonants in a String?

In this Instructional exercise, we have Given the Most Widely recognized Coding Interview Questions and Replies with Program Rationale and Code Models for you to Work on Programming:

We are mindful that noting the most essential coding or programming Interview Questions decides how we act in a meeting. The meeting might be for Java, C++, or a Javascript prerequisite, yet the premise continues as before, that is the way solid we are in the underpinnings of programming rationale.

Additionally on the off chance that our methodology is speedy and unpretentious in a meeting, the likelihood of choice is higher. So read on for breaking the coding Interview Questions.

Make sure to study and practice these programming inquiries prior to confronting a meeting. This won't just lift your conviction yet in addition will be useful to rapidly respond to them. The inquiries will essentially cover subjects like exhibits, string, connected list, etc.

Q #1) How can you reverse a string?

Answer: String is reversed with the following algorithm:

1. Initiate
2. The string which is to be reversed is declared.
3. Get the length of the string.
4. Start a loop and then swap the position of the array elements.
5. Keep the exchanged positions.
6. Print the reversed string.

Q #2) What is a palindrome string?

Answer: After the string is reversed as discussed in Q #1, we need to put the following condition:

Code snippet:

if(actualtxt.equals(reversetxt)){
   return “Palindrome”;
else
     return “Not Palindrome”;
}

Q #3) How to get the matching characters in a string?

Answer: To get the matching characters in a string, the below steps are followed:

1. Hash Map data structure is taken which works with the key-value pair.
2. Loop the strings, character by character, and verify if that character of the string exists in the hash map or not.

Code snippet:

HashMap<Character, Integer> mp = new HashMap<> ();
   for (int j = 0; j<text.length (); j++) {
       char ch = text.charAt(j);
          if(mp.containsKey(ch)){
                int cnt = mp.get(ch);
             mp.put(ch, ++cnt);
         }else{
            mp.put(ch, 1);
          }
}
Set<Character> charct = map.keySet();
 
for (Character ch: charct){
     int c= mp.get(ch);
     if(c>1){
        System.out.println(ch+ " - " + c);
     }
}