arraynew.java

thinking in java 书中源码 第四版

//: initialization/ArrayNew.java
// Creating arrays with new.
import java.util.*;
import static net.mindview.util.Print.*;

public class ArrayNew {
  public static void main(String[] args) {
    int[] a;
    Random rand = new Random(47);
    a = new int[rand.nextInt(20)];
    print("length of a = " + a.length);
    print(Arrays.toString(a));
  }
} /* Output:
length of a = 18
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
*///:~