Friday, March 27, 2015

Array in JSP

A brief in JSP Array !

JSP does not have array structure as JSP is not a complete programming language. JSP doesn't have array structure but array are declared using Java can be used in JSP. In JSP arrays are used to storeseveral data types in a series that can be string,int,dynamic data, vector etc.

Single Dimension Array:

Single dimensional array is a list of variables of same type that are accessed by a common name. An individual variable in the array is called an array element. Arrays forms a way to handle groups of related data. 

JSP File (index.jsp)

 <!DOCTYPE html>  
 <html>  
   <head>  
     <title>nirajanghimireyworkshop.blogspot.com</title>  
   </head>  
   <body>  
     <%  
       double arr[];  
       arr = new double[100];  
       arr[5] = 4.5;  
       out.println("Array index [3] holds " + arr[5]);  
     %>  
   </body>  
 </html>  
Multi Dimensional Array:

In Java, multidimensional arrays are actually arrays of arrays. These, as you might expect, look and act like regular multidimensional arrays. However, as you will see, there are a couple of subtle differences. 

JSP File (index.jsp)

 <!DOCTYPE html>  
 <html>  
   <head>  
     <title>nirajanghimireyworkshop.blogspot.com</title>  
   </head>  
   <body>  
     <%  
       double arr[][] = new double[2][10];  
       arr[0][1] = 19.3;  
       arr[1][2] = 45.02;  
       out.println("Array index [0][1] holds " + arr[0][1] + "<br/>");  
       out.println("Array index [1][2] holds " + arr[1][2]);  
     %>  
   </body>  
 </html> 

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