[jira] [Updated] (LANG-1402) ArrayUtils should have null and index-safe get methods.

["Mark Dacek (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LANG-1402?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mark Dacek updated LANG-1402:
-----------------------------
    Description: 
There should be a safe way to retrieve a value from array without having to check for null and length. It would be a very simple implementation but could save developers a great deal of time in writing and testing.

 

Something like 

 
{code:java}
String[] a = null;
ArrayUtils.get(a, 5); //returns null
a = new String[5];
ArrayUtils.get(a, 10); // returns null
 
a[0] = "Hello World";
ArrayUtils.get(a, 0); // returns "Hello World"
{code}
 

 We could handle a few other cases - a default return value. The tricky/annoying thing is the need to cast everything in order to make this 

  was:
There should be a safe way to retrieve a value from array without having to check for null and length. It would be a very simple implementation but could save developers a great deal of time in writing and testing.

 

Something like 

 

 
{code:java}
String[] a = null;
ArrayUtils.get(a, 5); //returns null
a = new String[5];
ArrayUtils.get(a, 10); // returns null
 
a[0] = "Hello World";
ArrayUtils.get(a, 0); // returns "Hello World"
{code}
 

 


> ArrayUtils should have null and index-safe get methods.
> -------------------------------------------------------
>
>                 Key: LANG-1402
>                 URL: https://issues.apache.org/jira/browse/LANG-1402
>             Project: Commons Lang
>          Issue Type: New Feature
>          Components: General
>            Reporter: Mark Dacek
>            Priority: Minor
>   Original Estimate: 24h
>  Remaining Estimate: 24h
>
> There should be a safe way to retrieve a value from array without having to check for null and length. It would be a very simple implementation but could save developers a great deal of time in writing and testing.
>  
> Something like 
>  
> {code:java}
> String[] a = null;
> ArrayUtils.get(a, 5); //returns null
> a = new String[5];
> ArrayUtils.get(a, 10); // returns null
>  
> a[0] = "Hello World";
> ArrayUtils.get(a, 0); // returns "Hello World"
> {code}
>  
>  We could handle a few other cases - a default return value. The tricky/annoying thing is the need to cast everything in order to make this 



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