Nov 20, 2017 · In this post, I have collected some of the frequently asked Java array interview programs and have tried to write the solutions for them. I hope it will be helpful for you to prepare for the interviews. 1) Write a Java program to find duplicate elements in an array?

Mar 26, 2025 · Array is one of the most widely used data structure and is frequently asked in coding interviews to the problem solving skills. The following list of 50 array coding problems covers a range of difficulty levels, from easy to hard, to help candidates prepare for interviews. Easy Problems. Medium Problems. Hard Problems. Related Articles:

Aug 24, 2023 · Lets start practising of 300+ coding problems to crack coding interview of product based and service based organization. We have coverd string, array, linked list, searching sorting and many more.

Feb 19, 2025 · String-related problems often assess a candidate’s understanding of concepts like pattern matching, manipulation, and efficient algorithm design. Here is the collection of the Top 50 list of frequently asked interview questions on Strings.

/******************** String, char, Integer conversion ***************/ [String to int]: Integer.parseInt (s); // return int primitive [String to Integer]: Integer.valueOf (s); // return an Integer Object [int to String]: String.valueOf (int) [char [] to String]: String str = new String (chArray); [list to array]: String [] arr = list.toArr...

Below is the Java strings cheat sheet. You can use it as quick reference guide for Java strings while preparing for the Java interviews. What are strings? Strings are nothing but the sequence of characters enclosed within double quotes. For example, “ABC”, “xyz”, “123” etc. How strings are represented in Java?

Let's start by diving into the primitive data types that Java offers. The primitive data types include byte, short, int, long, float, double, boolean, and char. The primitive data type specifies the size and type of variable values. A Byte data type is used to …

Feb 15, 2020 · Here is my list of some of the frequently asked string coding questions from programming job interviews: Given an array of strings, find the most frequent word in a given array, I mean,...

Jan 26, 2025 · I’ve made it easy for you to refer interview questions as per the topics (Core Java, Microservices, Spring Boot, Design Patterns, AWS, etc.) and prepared lists below. Strings are often used in sensitive operations (e.g., file paths, database connections). Immutability ensures that their values cannot be altered maliciously after being created.

Apr 20, 2024 · String String s = "Hello world"; String s = new String("Hello world!"); String s = new String(charArray); Methods