String original = "Pi is 3.14159265, but e is 2.718281828"; String fixed = original.replaceAll( "([0-9]+)\\.([0-9])([0-9])[0-9]*", "$1.$2$3" ); System.out.println( fixed );
Answer:
Pi is 3.14, but e is 2.71
String original = "Pi is 3.14159265, but e is 2.718281828"; String fixed = original.replaceAll( "([0-9]+)\\.([0-9])([0-9])[0-9]*", "$1.$2$3" ); System.out.println( fixed );
Pi is 3.14, but e is 2.71
replaceFirst()
The String class has a method
public String replaceFirst( String RE, String replacement )
which works like replaceAll() except now only the first
substring that matches RE is replaced with replacement.
What is the output of the following fragment?
String original = "Mr. Smith was scene walking away from the scene of the crime."; String fixed = original.replaceFirst( "scene", "seen" ); System.out.println( fixed );