Q1.Trapping Rain Water You have been given a long type array/list 'ARR' of size 'N'. It represents an elevation map wherein 'ARR[i]' denotes th... read more
Q2.Java and OOPS Questions What is a singleton class. What are design patterns. Explain the diamond problem in Java. Will Java be able to susta... read more
Q3.1. All types of database commands- DDL, DML, DCL, TCL 2. Write a java code to reverse a given string or sentence 3. Questions based on a maj... read more