25 lines
756 B
Java
25 lines
756 B
Java
// generics/ArrayMaker.java
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// (c)2021 MindView LLC: see Copyright.txt
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// We make no guarantees that this code is fit for any purpose.
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// Visit http://OnJava8.com for more book information.
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import java.lang.reflect.*;
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import java.util.*;
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public class ArrayMaker<T> {
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private Class<T> kind;
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public ArrayMaker(Class<T> kind) { this.kind = kind; }
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@SuppressWarnings("unchecked")
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T[] create(int size) {
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return (T[])Array.newInstance(kind, size);
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}
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public static void main(String[] args) {
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ArrayMaker<String> stringMaker =
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new ArrayMaker<>(String.class);
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String[] stringArray = stringMaker.create(9);
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System.out.println(Arrays.toString(stringArray));
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}
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}
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/* Output:
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[null, null, null, null, null, null, null, null, null]
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*/
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