22 lines
640 B
Java
22 lines
640 B
Java
//: generics/ArrayMaker.java
|
|
// ©2015 MindView LLC: see Copyright.txt
|
|
import java.lang.reflect.*;
|
|
import java.util.*;
|
|
|
|
public class ArrayMaker<T> {
|
|
private Class<T> kind;
|
|
public ArrayMaker(Class<T> kind) { this.kind = kind; }
|
|
@SuppressWarnings("unchecked")
|
|
T[] create(int size) {
|
|
return (T[])Array.newInstance(kind, size);
|
|
}
|
|
public static void main(String[] args) {
|
|
ArrayMaker<String> stringMaker =
|
|
new ArrayMaker<>(String.class);
|
|
String[] stringArray = stringMaker.create(9);
|
|
System.out.println(Arrays.toString(stringArray));
|
|
}
|
|
} /* Output:
|
|
[null, null, null, null, null, null, null, null, null]
|
|
*///:~
|