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java.lang.Objectorg.fest.util.Strings
public final class Strings
Understands utility methods related to String
s.
Nested Class Summary | |
---|---|
static class |
Strings.StringsToJoin
Understands how to join String s using a given delimiter. |
static class |
Strings.StringToAppend
Understands how to append a given String to the given target, only if the target does not end with the
given String to append. |
Method Summary | |
---|---|
static Strings.StringToAppend |
append(String toAppend)
Appends a given String to the given target, only if the target does not end with the given
String to append. |
static String |
concat(Object... objects)
Concatenates the given objects into a single String . |
static boolean |
isEmpty(String s)
Returns true if the given String is null or empty. |
static Strings.StringsToJoin |
join(String... strings)
Joins the given String s using a given delimiter. |
static Object |
quote(Object o)
Returns the given object surrounded by single quotes, only if the object is a String . |
static String |
quote(String s)
Returns the given String surrounded by single quotes, or null if the given
String is null . |
Methods inherited from class java.lang.Object |
---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Method Detail |
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public static boolean isEmpty(String s)
true
if the given String
is null
or empty.
s
- the String
to check.
true
if the given String
is null
or empty, otherwise
false
.public static String quote(String s)
String
surrounded by single quotes, or null
if the given
String
is null
.
s
- the given String
.
String
surrounded by single quotes, or null
if the given
String
is null
.public static Object quote(Object o)
String
.
o
- the given object.
String
.quote(String)
public static String concat(Object... objects)
String
. This method is more efficient than concatenating
using "+", since only one StringBuilder
is created.
objects
- the objects to concatenate.
String
containing the given objects.public static Strings.StringsToJoin join(String... strings)
String
s using a given delimiter. The following example illustrates proper usage of
this method:
Strings.join("a", "b", "c").with("|")which will result in the
String
"a|b|c"
.
strings
- the String
s to join.
String
s.Strings.StringsToJoin.with(String)
public static Strings.StringToAppend append(String toAppend)
String
to the given target, only if the target does not end with the given
String
to append. The following example illustrates proper usage of
this method:
Strings.append("c").to("ab"); Strings.append("c").to("abc");which will result in the
String
"abc"
for both cases.
toAppend
- the String
to append.
String
and knows to append the given
String
.Strings.StringToAppend.to(String)
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