Are Blanks, Spaces, and tabs part of a string?
105563
Posix Character Sets difference between [[:blank:]] and [[:space:]]?
57228
Check for whitespace at beginning of string
10610
How can I check if a single character appears in a string?
66491
How many String objects will be created when using a plus sign?
30221
String, StringBuffer, and StringBuilder
43571
Reading string from input with space character?
38456
What are "\" delimiters in box expressions?
3265
How can I test if a variable is empty or contains only spaces?
53265
Remove empty spaces and period
52780
Why does the browser renders a newline as space?
108162
What is the effect of trailing white space in a scanf() format string?
576
How can I check for an empty/undefined/null string in JavaScript?
76336
String formatting: % vs. .format vs. string literal
46800
Aligned, hanging indents in non-monospaced code
120428
Entering null characters in a string
12016
When to use \par and when \\, \newline, or blank lines
77609
How to do string formatting with placeholders in Java (like in Python)?