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Explain primitive data types in java?
Java's primitive data types are extremely similar to those of C. They involve boolean, byte, short, long, int, float, double, and char. The boolean type has been added. Therefore the implementation of the data types has been substantially cleaned up in various ways.
1. Where C and C++ go away a number of issues to be machine and compiler dependent (for instance the size of an int) Java specifies everything. 2. Java prevents casting among arbitrary variables. Only casts among numeric variables and among sub and superclasses of the same object are permitted. 3. All numeric variables in Java are signed.
sizeof isn't essential in Java because all sizes are precisely described. For instance, an int is always 4 bytes. This might not seem to be adequate while dealing with objects in which aren't base data types. Therefore even if you did know the size of a particular object, you couldn't do anything with it anyway. You cannot convert an arbitrary object within bytes and back again.
Differentiation between if statement and a switch statement ?
A Mexican restaurant in London is struggling with preparing the meal ordered by it;s customer in time and has started loosing it;s business. The owner is looking at the possibility
Computer programming Project Description: Solving various problems about traffic jam Skills required: C# Programming, Java, C++ Programming, PHP, Software Architecture
Java program will be take data from excel files (left diagram), and uses can be able to enter the input(middle diagram) in website when run the input the result appear in Pie 2D or
try { pa="weblog"; pas="weblog"; Connection c; Statement st;
What are the different messaging paradigms JMS supports? Ans) Publish and Subscribe i.e. pub/suc and Point to Point i.e. p2p.
Can we use the constructor, instead of init(), to initialize servlet? Ans) Yes. Of course you can use the constructor instead of init(). There's nothing to stop you. But you sho
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Write a function that draws a cow at a certain location on the screen, and use the function to draw a herd of cows
Coarse Grained SOA : Services are also could be coarse grained. E.g: You may have a purchase element with individual functions to make a purchase order, add line items, and a
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