BT Group Software Developer interview questions

Explain about your project, Spring container types, and its used, Life cycle, Annotations, what will happen if two different beans id is created from a single class, the difference between singleton and prototype, write a program to read the data from files and count the words, program to start a Thread, Thread Life Cycle, Exception handling program, Difference between HashMap and TreeMap, Explain internal working flow of these two, Difference between interface and Abstract class, Multiple inheritance program(through interface),

logic of linked list