String.append

(String str, String suffix)

String

String.append("This is", " a test")

This is a test

String.join

(String separator, String... strings)

String

String.join(",", "This", "is", "a", "test")

This,is,a,test

String.join("", "This", "is", "a", "test")

Thisisatest

String.len

(String input)

Integer

String.len("This")

4

String.removeSpaces

(String input)

String

String.removeSpaces("This is a test")

Thisisatest

String.replace

(String input, match, replacement)

String

String.replace("This is a test", "is", "at")

That at a test

String.replaceFirst

(String input, match, replacement)

String

String.replaceFirst("This is a test", "is", "at")

That is a test

String.stringContains

(String input, String searchString)

Boolean

String.stringContains("This is a test", "test")

true

String.stringContains("This is a test", "doesn'tExist")

false

String.stringSwitch

(String input, String defaultString, String... keyValuePairs)

String

String.stringSwitch("This is a test", "default", "key1", "value1")

default

String.stringSwitch("This is a test", "default", "test", "value1")

value1

String.stringSwitch("First match wins", "default", "absent", "value1", "wins", "value2", "match", "value3")

value2

String.stringSwitch("Substrings count", "default", "ring", "value1")

value1

String.substring

(String input, int startIndex, int endIndex)

String

String.substring("This is a test", 2, 9)

is is a

String.substringAfter

(String input, String searchString)

String

String.substringAfter("abc@okta.com", "@")

okta.com

String.substringBefore

(String input, String searchString)

String

String.substringBefore("abc@okta.com", "@")

abc

String.toUpperCase

(String input)

String

String.toUpperCase("This")

THIS

String.toLowerCase

(String input)

String

String.toLowerCase("ThiS")

this