src/org/kocakosm/pitaya/io/TextFiles.java
public static List<String> head(File f, int n) throws IOException
	{
		return head(f, n, Charsets.DEFAULT);
	}
public static List<String> head(File f, int n) throws IOException
	{
		return head(f, n, Charsets.DEFAULT);
	}
Returns the first (up to {@code n}) lines of the given {@code File}
using the system's default charset. Named after the Unix command of
the same name.

@param f the {@code File} to read.
@param n the maximum number of lines to read.

@return the first lines of the given {@code File}.

@throws NullPointerException if {@code f} is {@code null}.
@throws IllegalArgumentException if {@code n} is negative.
@throws IOException if {@code f} does not exist, or if it is a
directory rather than a regular file, or if it can't be read.
@throws SecurityException if a security manager exists and denies
read access to {@code f}.