generated.java

java编程思想(第四版)书中原代码 ,对初学者很有用的东西

//: net/mindview/util/Generated.java
package net.mindview.util;
import java.util.*;

public class Generated {
  // Fill an existing array:
  public static <T> T[] array(T[] a, Generator<T> gen) {
    return new CollectionData<T>(gen, a.length).toArray(a);
  }
  // Create a new array:
  @SuppressWarnings("unchecked")
  public static <T> T[] array(Class<T> type,
      Generator<T> gen, int size) {
    T[] a =
      (T[])java.lang.reflect.Array.newInstance(type, size);
    return new CollectionData<T>(gen, size).toArray(a);
  }
} ///:~