给定数组，去掉0元素后将剩下的元素赋给新的数组

编程实现给定数组，将数组中值为0的项去掉存入新的数组。

package com.liaojianya.chapter1;
/**
 * This program demonstrates the way to remove zero from old array and insert into new array.
 * @author LIAO JIANYA
 * 2016年7月21日
 */
public class RemoveZero
{
	
	public static void main(String[] args) 
	{
		int k = 0;
		int oldArray[] = {1, 3 , 4, 5, 0, 0, 0, 8, 4, 5, 0, 9, 1};
		System.out.println("------------print oldArray--------------");
		for(int i : oldArray)
		{
			System.out.print(i + " ");
			if(oldArray[i] == 0)
			{
				k++;
			}
		}
		int newArray[] = new int[(oldArray.length - k)];
		int j = 0;

		
		for(int i = 0; i < oldArray.length; i++)
		{
			if(oldArray[i] != 0)
			{
				newArray[j] = oldArray[i];
				j++;
			}
		}

		System.out.println();
		System.out.println("------------print newArray--------------");
		for(int i : newArray)
		{
			System.out.print(i + " ");
		}
		System.out.println();
		System.out.println("newArray.length = " + newArray.length);
		System.out.println("k = " +  k);	
	}

}

　　运行结果：

------------print oldArray--------------
1 3 4 5 0 0 0 8 4 5 0 9 1 
------------print newArray--------------
1 3 4 5 8 4 5 9 1 
newArray.length = 9
k = 4