what does length represents in the following code snippet: int a[]={10,20,30}; System.out.println(a

Replies

• 

  Kaustubh Katdare

  Please post the full code in the post, title is just a title.
• 

  Dancer_Engineer

  If this is your code:
  

  int a[] = {10,20,30};
  System.out.println(a.length);

  Here 'a.length' gives the length of the array 'a'.
• 

  Vikash Verma

  I mean to find array length , we use arrayname.length .
  What is this length variable, where it is generated, is arrayname a class,. . .
• 

  Anoop Kumar

  I tried to find out source code for array but didn't got it. There is array class in java.lang.reflect package but that is different and similar to array functionality.
  
  Well answer is Array is not a class. Its a reference type. There are three reference type in java class, interface and array
  it is built-in JVM part and array.length is defined as
  public final length. as array length is constant which stores length of array.
• 

  Dancer_Engineer

  #-Link-Snipped-#, you may take a look at these links:
  Arrays (The Java™ Tutorials > Learning the Java Language > Language Basics)
  Reference Data Types
• 

  suraz

  #-Link-Snipped-#
  check this out
• 

  Vikash Verma

  #-Link-Snipped-# you are right...😎