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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.
Why You don't need to import java.lang.* There is one exception to the import rule. All classes in the java.lang package are imported by default. Therefore you do not required
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Question 1 Describe any five buzz words in Java Question 2 Describe exception classes and also explain common exceptions in java Question 3 Describe primitive and
Purpose Demonstrate your ability to ability to use Java data and control structures. Draw with the aid of conditionals and loops. Background Thought A note on comments:
What is the difference between instance and object of a class? Few says both are same, then why java kept both the words for same thing?
Draw a 5 inch square on the screen using pseudocode
i have got project of Vending machine. would you please help me about how to start and how to use coding.thanks
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Action mapping having all the deployment information for a particular Action bean. This class is to verify where the results of the Action will be sent once its processing is done.
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