Java 11 String methods| lines strip isBlank examples| new features
In this blog post, learn the six new methods added to the String class in Java 11.
JDK 11 - Strings methods
Java 11
Version added a few more methods to the string
class.
This method helps the developer to simplify the coding styles and improve performance.
lines() example
Returns the Stream of strings separated with a line break from multi-line strings
Syntax:
Stream<String> lines()
Stream lines = string.lines();
This method can be rewritten in the older version using the stream below.
String linesExample= string.lines()
.map(String::trim)
.collect(joining("\n"));
Example:
lines()
method is not Unicode aware compliant
String multilinesstring="String\\nlines\\ndemo\\n";
multilinesstring.lines().forEach(System.out::println); // returns String lines demo
strip() example
This method removes Unicode whitespace characters from a string.
It has the same behavior as a trim() method.
strip()
method is not Unicode aware compliant.
System.out.println(" cloud".strip()); // prints "cloud"
System.out.println("hadoop ".strip()); // prints "hadoop"
System.out.println(" cloudhadoop ".strip()); // prints "cloudhadoop"
stringLeading() method
This method removes a leading whitespace character from String.
stringTrailing() example
This method removes a trailing whitespace character from String.
stringTrailing+stringLeading is equal to strip() method.
isBlank() example
This method is used to check if the string is empty or only contains whitespace characters
repeat(int) example
return the number of times the string wants to repeat. number of times can be configured as a parameter to this method
Conclusion
In this tutorial, Learned new methods introduced in the java11 version with examples.