Groovy Date Format one-liner

new Date().format("yyyy-MM-dd")

This method has been added to java.util.Date




Current date (mm/dd/yyyy) (Groovy forum at JavaRanch):

import org.codehaus.groovy.runtime.*;

class Run{
static void main(def args){
def dateTime = new Date()
println DateGroovyMethods.format(dateTime, 'MM/dd/yyyy')
}
}

Groovy File One Liners

Groovy Scripting and Programming: Groovy File One Liners

One of the nice things about Groovy if you are a Java programmer is the ease that you can manipulate files with just one like of code.

Create or replace a file and write a line of text to it:
new File("myfile.txt").write("Here is a line: \"whats a nice programmer like you doing at a blog like this\" \n");

Append to a file (creates the if it doesn't exist)
new File("myfile.txt").append("\"Looking for a some code like this\"\n");

Read the second line (First line is line 0) of the file
println new File("myfile.txt").readLines()[1] //what was the response