"Software developers design, write, test, and maintain the code for a software system. Extensive knowledge of programming languages, data structures, and algorithms are necessary to pass the technical interview which is designed to test these skills. Employers are looking for candidates with a bachelor's degree in computer science or related field or equivalent work experience. "
What problem you face when Java string is being immutable and you copy a line of a file into a String variable for a huge file
Java internally dedicates a new string for every copy as String is immutable