arrayclassobj.java

来自「think in java TIJ-3rd-edition-code.zip」· Java 代码 · 共 21 行

//: c04:ArrayClassObj.java
// Creating an array of nonprimitive objects.
// {NoAutomaticTesting}
import java.util.*;

public class ArrayClassObj {
  static Random rand = new Random();
  static int pRand(int mod) {
    return Math.abs(rand.nextInt()) % mod + 1;
  }
  public static void main(String[] args) {
    Integer[] a = new Integer[pRand(20)];
    System.out.println(
      "length of a = " + a.length);
    for(int i = 0; i < a.length; i++) {
      a[i] = new Integer(pRand(500));
      System.out.println(
        "a[" + i + "] = " + a[i]);
    }
  }
} ///:~