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

Vikash Verma · 2012-06-19T09:23:30+00:00

sorry the last line of code is System.out.println(a.length); what exactly length is...😎

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

Vikash Verma

Member

Updated: Oct 26, 2024

Views: 1.1K

sorry the last line of code is

System.out.println(a.length);

what exactly length is...😎

0

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Kaustubh Katdare

Administrator • Jun 19, 2012

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

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Dancer_Engineer

Member • Jun 19, 2012
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'.
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Vikash Verma

Member • Jun 19, 2012

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

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Anoop Kumar

Member • Jun 19, 2012

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 <variable> length. as array length is constant which stores length of array.

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Dancer_Engineer

Member • Jun 19, 2012

#-Link-Snipped-#, you may take a look at these links:
<a href="https://docs.oracle.com/javase/tutorial/java/nutsandbolts/arrays.html" target="_blank" rel="nofollow noopener noreferrer">Arrays (The Java™ Tutorials > Learning the Java Language > Language Basics)</a>
<a href="https://www.roseindia.net/java/master-java/Reference-Data-Types.shtml" target="_blank" rel="nofollow noopener noreferrer">Reference Data Types</a>

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suraz

Member • Jun 19, 2012

#-Link-Snipped-#
check this out

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Vikash Verma

Member • Jun 19, 2012

#-Link-Snipped-# you are right...😎

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