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VectorExample.java
Output
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VectorExample.java
import java.util.Vector; /* * Example of toArray(T[] a) method. */ public class VectorExample { public static void main( String[] args ) { Vector<Integer> vector = new Vector<Integer>(); vector.add(20); vector.add(30); vector.add(40); vector.add(50); System.out.println("vector : " + vector + "\n"); Integer[] integerArray = new Integer[vector.size()]; /* * Returns an array containing all of the elements in this Vector in the * correct order; the runtime type of the returned array is that of the * specified array. If the Vector fits in the specified array, it is * returned therein. Otherwise, a new array is allocated with the * runtime type of the specified array and the size of this Vector. * * If the Vector fits in the specified array with room to spare (i.e., * the array has more elements than the Vector), the element in the * array immediately following the end of the Vector is set to null. * (This is useful in determining the length of the Vector only if the * caller knows that the Vector does not contain any null elements.) */ integerArray = vector.toArray(integerArray); for( Integer value : integerArray ) { System.out.println(value); } } }
vector : [20, 30, 40, 50] 20 30 40 50
https://sites.google.com/site/javaee4321/java-collections/VectorDemoToArrayParam.zip?attredirects=0&d=1
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