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Java data types with examples

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instanceof java

Posts: 576
Nickname: instanceof
Registered: Jan, 2015

instanceof java is a java related one.
Java data types with examples Posted: Mar 9, 2015 8:18 AM
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This post originated from an RSS feed registered with Java Buzz by instanceof java.
Original Post: Java data types with examples
Feed Title: Instance Of Java
Feed URL: http://feeds.feedburner.com/blogspot/TXghwE
Feed Description: Instance of Java. A place where you can learn java in simple way each and every topic covered with many points and sample programs. 		Latest Java Buzz Posts
Latest Java Buzz Posts by instanceof java
Latest Posts From Instance Of Java

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  1. Primitive data types or Fundamental data types.
  2. Referenced data types or Derived data types.

1.Primitive Data types


1.byte

  1. package com.instanceofjava;
  2.  
  3. public class ByteDemo {
  4.  
  5. public static void main(String[] args) {
  6.  
  7.         byte a=10; // a is a variable of type byte holding the value 1;
  8.         byte b=20;// b is a variable of type byte holding the value 2;
  9.         
  10.         byte c= (byte)(a+b);
  11.         System.out.println(c);
  12.  
  13.     }
  14. }

Output:

  1. 3

2.short

  1. package com.instanceofjava;
  2.  
  3. public class ShortDemo {
  4.  
  5. public static void main(String[] args) {
  6.  
  7.         short a=1;
  8.         short b=2;
  9.         
  10.         short c= (short)(a+b);
  11.         System.out.println(c);
  12.  
  13.     }
  14. }

Output:

  1. 3

3.int

  1. package com.instanceofjava;
  2.  
  3. public class IntDemo {
  4.  
  5. public static void main(String[] args) {
  6.  
  7.         int a=10; // a is a variable of type integer holding the value 10;
  8.         int b=20;// b is a variable of type integer holding the value 20;
  9.         
  10.         int c= a+b;
  11.         System.out.println(c);
  12.  
  13.     }
  14. }

Output:

  1. 30


4.long

  1. package com.instanceofjava;
  2.  
  3. public class LongDemo {
  4.  
  5. public static void main(String[] args) {
  6.  
  7.         long a=1234567890;
  8.         long b=1234567890;
  9.  
  10.         long c= a+b;
  11.  
  12.         System.out.println(c);
  13.  
  14.     }
  15. }

Output:

  1. 2469135780


5.float

  1. package com.instanceofjava;
  2.  
  3. public class FloatDemo {
  4.  
  5. public static void main(String[] args) {
  6.  
  7.         float a=1234567.8f;
  8.         float b=1234567.8f;
  9.  
  10.         float c= a+b;
  11.  
  12.         System.out.println(c);
  13.  
  14.     }
  15. }

Output:

  1. 2469135.5


7.double

  1. package com.instanceofjava;
  2.  
  3. public class DoubleDemo {
  4.  
  5. public static void main(String[] args) {
  6.  
  7.         double a=1234567910112181314151634444422233334491.1d;
  8.         double b=1234567910112181314151634444422233334491.8d;
  9.         double c= a+b;
  10.         System.out.println(c);
  11.  
  12.     }
  13. }

Output:

  1. 2.4691358202243627E39

8.char

  1. package com.instanceofjava;
  2.  
  3. public class CharDemo {
  4.  
  5. public static void main(String[] args) {
  6.  
  7.         char a='A';
  8.         char b= 'B';
  9.  
  10.       System.out.println(a);
  11.       System.out.println(b);
  12.       System.out.println(a+b);
  13.  
  14.     }
  15. }

Output:

  1. A
  2. B
  3. 131


9.boolean

  1. package com.instanceofjava;
  2.  
  3. public class BooleanDemo {
  4.  
  5. public static void main(String[] args) {
  6.  
  7.         boolean a=true;
  8.         boolean b= false;
  9.  
  10.       System.out.println(a);
  11.       System.out.println(b);
  12.   
  13.  
  14.     }
  15. }

Output:

  1. true
  2. false

1.Referenced Data types

1.class


  1. package com.instanceofjava;
  2.  
  3. public class Sample{
  4.  int a,b; 
  5.  
  6. void add(){
  7. System.out.println(a+b);
  8. }

  10. public static void main(String[] args) {
  11.  
  12.        Sample obj= new Sample();
  13.  
  14.        obj.a=10;
  15.        obj.b=12;

  17.        obj.add();
  18.  
  19.     }
  20. }

Output:

  1. 22

2.Array

  1. package com.instanceofjava;
  2.  
  3. public class ArrayDemo {
  4.  
  5. public static void main(String[] args) {
  6.  
  7.         int a[]={1,2,3,4,5,6};
  8.  
  9.         for (int i = 0; i < a.length; i++) {
  10.             System.out.println(a[i]);
  11.         }
  12.   
  13.  
  14.     }
  15. }

Output:

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6


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