Mega Code Archive
Removes an element from a an array yielding a new array with that data
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//package util;
import java.util.List;
/**
* Collection of helpful, static array procedures. These should be part of the JDK.
*
* @author Michael Tremel (mtremel@email.arizona.edu)
*/
public class ArrayUtil
{
/**
* Removes an element from a an array yielding a new array with that data.
*
* @param elementData
* original array
* @param index
* item to remove
* @return new array sized to fit
*/
public static String[] removeElement(String[] elementData, int index)
{
int size = elementData.length;
String[] newData = new String[size - 1];
int numMoved = size - index - 1;
if (numMoved > 0)
System.arraycopy(elementData, index + 1, newData, index, numMoved);
elementData = null; // let the gc work
return newData;
}
/**
* Joins a List<String> with a symbol into a single String. Why isn't
* this part of List? Blah.
*
* @param arguments
* segments to be joined
* @param symbol
* what the segments will be joined with
* @return joined String of all the arguments
*/
public static final String joinArguments(List<String> arguments, String symbol)
{
StringBuilder toReturn = new StringBuilder();
for (String s : arguments)
toReturn.append(s + symbol);
return toReturn.toString();
}
}
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