Wrapper Classes in Java - Java Programming - The Java Concepts Part

-
Wrapper Classes in Java - Java Programming - The Java Concepts Part

Wrapper Classes in Java

Each of Java's eight primitive data type has a class dedicated to it. These are known as wrapper classes because they "wrap" the primitive data type into an object of that class.

To use lower case letters and Upper case letters in Java applications, Java has given a set of conventions

Difference Between Primitive or Wrapper Class

Primitive

boolean, byte, char, int, float, double, long, short,

Wrapper Class

Boolean, Byte, Character, Integer, Float, Double, Long, Short,

Example Wrapper Class

public static void main(String [ ]args){
int i=10;//single value container
Integer iRef=new Integer(i);
int j=iRef.intValue();
Integer kRef=i;
int L=kRef //Auto Unboxing)
}
}

Other Related Links🔗

Comments

Post a Comment

Remember to keep Comments Respectfully

Popular posts from this blog

Java & Java Uses - thejavaconceptsparts

-
Java Java is an object-oriented programming language that produces software for multiple platforms. When a programmer writes a Java application, the compiled code (known as bytecode) runs on most operating systems (OS), including Windows, Linux and Mac OS)  Java Uses   Java is used as the server-side language for most back-end development projects, including those involving big data and Android development. Java is also commonly used for desktop computing, other mobile computing, games, and numerical computing. Related Link's🔗 Define Java enumeration (enum)  Declaration of enum in java Java & Java Uses Important points of enum ------------------------------------------- Others Related Link 🔗 Introduction Structured Vs Object Oriented Programming   Top-Down and Bottom-up Approaches Advantages of top-down programming  Disadvantages of top-down programming Why Object Oriented Approach and Features of object oriented programming ? 
Read more

Buzzword in Java - thejavaconceptspart

-
Buzzword in Java - thejavaconceptspart Buzzwords in Java The Feature of Java are also known as Java Buzzwords. A list of Most important features of Java language is given as below Simple Java is very easy to learn and it's syntax is simple, clean and easy to understand.There is no need to remove unreferenced objects because there is an Automatic Garbage Collection in Java. Object-oriented Java is an object oriented programming language. Everything in Java is an object. Basic concepts of OOPS are:- Object Class Inheritance Polymorphism Abstraction Encapsulation Portable Java is portable" refers to the SE version. It means that you can run java bytecode on any hardware that has a compliant JVM Platform Independent Java is platform independent because it is different from other language like c, c++ etc which can compiled into platform specific machine while
Read more

Java Naming Conventions - thejavaconceptspart

-
Java Naming Conventions Java Naming Conventions Java is strictly a case sensitive programming language, where is Java applications there is a separate Recognization for lower case letters and for Upper case letters. To use lower case letters and Upper case letters in Java applications, Java has given a set of conventions All classes names, abstract classes names, interface names must be started with upper case letters and the sub sequent letters must also be upper case letters Ex: String, StringBuffer, InputStreamReader All Java variables names must be started with lower case letters buts the subsequent symbols must be Upper case letters Example: in, out, err, pageContext, bodyContent All the Java method names must be started with lower case letters but the subsequent Symbols must be Upper Case letters.
Read more