Java Primitive Types - Web Development and Design | Tutorial for Java, PHP, HTML, Javascript Java Primitive Types - Web Development and Design | Tutorial for Java, PHP, HTML, Javascript

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Wednesday, March 13, 2019

Java Primitive Types

Java Primitive Types


üThere are exactly eight primitive data types in Java
üFour of them represent whole valued signed numbers:
übyte, short, int, long
üTwo of them represent floating point numbers:
üfloat, double
üOne of them represents characters:
üchar
üAnd one of them represents boolean values:
üboolean.

Numeric Primitive Types


üThe difference between the various numeric primitive 
types is their size, and therefore the values they can store:

Character Primitive Type



üIt uses unicode to represent character.

üThe char type is unsigned 16 bit values ranging from
 0 to 65536.

üASCII still ranges from 0 to 127.

Example:

class test

{  public static void main (String args[])

  {

  char ch1, ch2;

  ch1=88;

  ch2=‘Y’;

  System.out.println (“ch1 and ch2: “ + ch1+” “+ch2);

  }

}

Output: ch1 and ch2: X Y

Character Primitive Type

Example:

class test

{

  public static void main (String args[])

  {

  char ch1;

  ch1= ‘X’;

  Sytem.out.println (“ch contains “+ch1);

  ch1++;

  System.out.println (“ch1 is now “ + ch1);

  }

}

Output:

ch1 contains X

Ch1 is now Y

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