Java Placement tutorial |  What is a constructor in Java | what is a default constructor | What is parameterized constructor  Java Constructor is a special method that doesn't have a return…

Written Exam.   The time allotted for the written test is 60 minutes, and it consists of four sections -  1.Quantitative Aptitude 2. Programming Language Efficiency  3.Coding Test  4.E-mail W…

Garbage Collector Internal working 1.What is garbage collection It is the process of removing unused object from java heap area and making heap space empty for use In c and c++ programmer is r…

1.Can we make array volatile in Java? Yes, you can make an array volatile in Java but only the reference which is pointing to an array, not the whole array. What I mean, if one thread changes …

1. What is String in Java? Is String is data type? String in Java is not a primitive data type like int, long or double. The string is a class or in more simple terms a user-defined type.  Str…

1. What is the size of int in 64-bit JVM? The size of an int variable is constant in Java, it's always 32-bit irrespective of platform. Which means the size of primitive int is same in both…