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https://issues.apache.org/jira/browse/LANG-1037?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Duncan Jones updated LANG-1037:
-------------------------------
Description:
A common programming challenge is joining a list with a different separator
between the final two items. For example, joining a list with {{", "}} as the
primary separator but {{" and "}} as the final separator. Take a look at [this
Stack Overflow question|http://stackoverflow.com/q/8255077/474189] to see just
how awkward the current solutions are.
I propose that we extend {{StringUtils}} with three additional methods:
{code:java}
public static String join(Iterable<?> iterable, String separator, String
endSeparator)
public static String join(Object[] array, String separator, String endSeparator)
public static String join(Object[] array, String separator, String
endSeparator, int startIndex, int endIndex)
{code}
This could also be added to the other {{join}} methods for primitives, but I
suspect the primary use case will be strings and I don't suggest we pollute the
class any further.
Below shows the expected pseudo output using {{", "}} and {{" and "}}:
{code}
join(a) == a
join(a,b) == a and b
join(a,b,c) == a, b and c
{code}
was:
A common programming challenge is joining a list with a different separator
between the final two items. For example, joining a list with {{","}} as the
primary separator but {{"and"}} as the final separator. Take a look at [this
Stack Overflow question|http://stackoverflow.com/q/8255077/474189] to see just
how awkward the current solutions are.
I propose that we extend {{StringUtils}} with three additional methods:
{code:java}
public static String join(Iterable<?> iterable, String separator, String
endSeparator)
public static String join(Object[] array, String separator, String endSeparator)
public static String join(Object[] array, String separator, String
endSeparator, int startIndex, int endIndex)
{code}
This could also be added to the other {{join}} methods for primitives, but I
suspect the primary use case will be strings and I don't suggest we pollute the
class any further.
Below shows the expected pseudo output using {{","}} and {{"and"}}:
{code}
join(a) == a
join(a,b) == a and b
join(a,b,c) == a, b and c
{code}
> Join list of objects with different end separator
> -------------------------------------------------
>
> Key: LANG-1037
> URL: https://issues.apache.org/jira/browse/LANG-1037
> Project: Commons Lang
> Issue Type: New Feature
> Components: lang.*
> Reporter: Duncan Jones
> Assignee: Duncan Jones
> Priority: Minor
> Fix For: Discussion
>
>
> A common programming challenge is joining a list with a different separator
> between the final two items. For example, joining a list with {{", "}} as the
> primary separator but {{" and "}} as the final separator. Take a look at
> [this Stack Overflow question|http://stackoverflow.com/q/8255077/474189] to
> see just how awkward the current solutions are.
> I propose that we extend {{StringUtils}} with three additional methods:
> {code:java}
> public static String join(Iterable<?> iterable, String separator, String
> endSeparator)
> public static String join(Object[] array, String separator, String
> endSeparator)
> public static String join(Object[] array, String separator, String
> endSeparator, int startIndex, int endIndex)
> {code}
> This could also be added to the other {{join}} methods for primitives, but I
> suspect the primary use case will be strings and I don't suggest we pollute
> the class any further.
> Below shows the expected pseudo output using {{", "}} and {{" and "}}:
> {code}
> join(a) == a
> join(a,b) == a and b
> join(a,b,c) == a, b and c
> {code}
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