Answer Posted / sandeep sagala
A primitive wrapper class in the Java programming language
is one of eight classes provided in the java.lang package to
provide object methods for the eight primitive types. All of
the primitive wrapper classes in Java are immutable. J2SE
5.0 introduced auto boxing of primitive types into their
wrapper object, and automatic unboxing of the wrapper
objects into their primitive value—the implicit conversion
between the wrapper objects and primitive values.
Wrapper classes are used to represent primitive values when
an Object is required. The wrapper classes are used
extensively with Collection classes in the java.util package
and with the classes in the java.lang.reflect reflection
package.
The primitive wrapper classes and their corresponding
primitive types are:
Primitive type Wrapper class Constructor Arguments
byte Byte byte or String
short Short short or String
int Integer int or String
long Long long or String
float Float float, double or String
double Double double or String
char Character char
boolean Boolean boolean or String
The Byte, Short, Integer, Long, Float, and Double wrapper
classes are all subclasses of the Number class.This Number
class is subject to the object class
| Is This Answer Correct ? | 6 Yes | 2 No |
Post New Answer View All Answers
Explain about strings in java?
Explain public static void main(string args[]).
Why deletion in linkedlist is fast than arraylist?
What is the difference between serializable and externalizable interface?
Why do you canvas?
What comes to mind when someone mentions a shallow copy in java?
What is function and method in java?
What is ‘is-a ‘ relationship in java?
Can java hashmap have duplicate keys?
What is the biggest integer?
Mention the default values of all the elements of an array defined as an instance variable.
How does java pattern compile work?
What is meant by oops concept in java?
What is anti pattern in programming?
What is anagram in java?
