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Why do we need wrapper classes?
It is sometimes simpler to deal with primitives as objects. Moreover most of the collection classes keep objects and not primitive data types. And also the wrapper classes give many utility methods also.
Because of these reasons we require wrapper classes. And since we make instances of these classes we can kept them in any of the collection classes and pass them around as a collection. Also we can pass them around as method parameters where a method expects an object.
Java Program Development and Execution Steps Java program normally go through five phases. These are 1. Edit, 2. Compile, 3. Load, 4. Verify and 5. Execute Co
What should be public? What should be private? As a rule of thumb: Classes are public. Fields are private. Constructors are public. Getter and setter methods
in java string is a
import java.text.NumberFormat; import java.util.Locale; public class Client { // instance data private String name; private long income_this_year; private double perce
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