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Revision: 13946
at May 14, 2009 04:59 by kungfoo
Initial Code 
package ch.hsr.ifs.liquid.util;

import static java.lang.System.arraycopy;

import java.lang.reflect.Array;

public class Arrays {
	private static final int ENLARGE_FACTOR = 2;

	public static <T> T[] enlargeArray(T[] array) {
		T[] enlargedArray = initArray(array, array.length * ENLARGE_FACTOR);
		arraycopy(array, 0, enlargedArray, 0, array.length);
		return enlargedArray;
	}
	
	public static <T> T[] trimArray(T[] array, int length) {
		T[] trimmedArray = initArray(array, length);
		arraycopy(array, 0, trimmedArray, 0, length);
		return trimmedArray;
	}

	public static <T> T[] composeArray(T[] array1, T[] array2) {
		int length1 = array1.length;
		int length2 = array2.length;

		T[] composedArray = initArray(array1, length1 + length2);

		arraycopy(array1, 0, composedArray, 0, length1);
		arraycopy(array2, 0, composedArray, length1, length2);

		return composedArray;
	}
	
	@SuppressWarnings("unchecked")
	private static <T> T[] initArray(T[] array, int newSize) {
		return (T[]) Array.newInstance(array.getClass().getComponentType(), newSize);
	}
}
Initial URL 

                                

                                                            

                                    

                                        

                                        Initial Description
                                        

                                    

                                    

                                

                                                            

                                    

                                        

                                        Initial Title
                                        

                                    

                                    
Resizing Generic Arrays in Java in A Generic Way

                                

                                                            

                                    

                                        

                                        Initial Tags
                                        

                                    

                                    
java

                                

                                                            

                                    

                                        

                                        Initial Language
                                        

                                    

                                    
Java