Here you can find the source of print(Collection c)
public static void print(Collection c)
//package com.java2s; /* Copyright (C) 2003 Univ. of Massachusetts Amherst, Computer Science Dept. This file is part of "MALLET" (MAchine Learning for LanguagE Toolkit). http://www.cs.umass.edu/~mccallum/mallet This software is provided under the terms of the Common Public License, version 1.0, as published by http://www.opensource.org. For further information, see the file `LICENSE' included with this distribution. */ import java.util.*; public class Main { public static void print(Collection c) { System.out.println(dumpToString(c)); }/*from w w w.j a v a2 s . com*/ public static void print(Collection c, String separator) { System.out.println(dumpToString(c, separator)); } public static String dumpToString(Collection c, String separator) { String retval = ""; for (Iterator it = c.iterator(); it.hasNext();) { retval += String.valueOf(it.next()); retval += separator; } return retval; } public static String dumpToString(Collection c) { return dumpToString(c, " "); } }