testarrays2.java

Java编程思想 第九课 全源码

//: c09:TestArrays2.java
// From 'Thinking in Java, 2nd ed.' by Bruce Eckel
// www.BruceEckel.com. See copyright notice in CopyRight.txt.
// Test and demonstrate Arrays2 utilities
import com.bruceeckel.util.*;

public class TestArrays2 {
  public static void main(String[] args) {
    int size = 6;
    // Or get the size from the command line:
    if(args.length != 0)
      size = Integer.parseInt(args[0]);
    boolean[] a1 = new boolean[size];
    byte[] a2 = new byte[size];
    char[] a3 = new char[size];
    short[] a4 = new short[size];
    int[] a5 = new int[size];
    long[] a6 = new long[size];
    float[] a7 = new float[size];
    double[] a8 = new double[size];
    String[] a9 = new String[size];
    Arrays2.fill(a1, 
      new Arrays2.RandBooleanGenerator());
    Arrays2.print(a1);
    Arrays2.print("a1 = ", a1);
    Arrays2.print(a1, size/3, size/3 + size/3);
    Arrays2.fill(a2,
      new Arrays2.RandByteGenerator());
    Arrays2.print(a2);
    Arrays2.print("a2 = ", a2);
    Arrays2.print(a2, size/3, size/3 + size/3);
    Arrays2.fill(a3,
      new Arrays2.RandCharGenerator());
    Arrays2.print(a3);
    Arrays2.print("a3 = ", a3);
    Arrays2.print(a3, size/3, size/3 + size/3);
    Arrays2.fill(a4,
      new Arrays2.RandShortGenerator());
    Arrays2.print(a4);
    Arrays2.print("a4 = ", a4);
    Arrays2.print(a4, size/3, size/3 + size/3);
    Arrays2.fill(a5,
      new Arrays2.RandIntGenerator());
    Arrays2.print(a5);
    Arrays2.print("a5 = ", a5);
    Arrays2.print(a5, size/3, size/3 + size/3);
    Arrays2.fill(a6,
      new Arrays2.RandLongGenerator());
    Arrays2.print(a6);
    Arrays2.print("a6 = ", a6);
    Arrays2.print(a6, size/3, size/3 + size/3);
    Arrays2.fill(a7,
      new Arrays2.RandFloatGenerator());
    Arrays2.print(a7);
    Arrays2.print("a7 = ", a7);
    Arrays2.print(a7, size/3, size/3 + size/3);
    Arrays2.fill(a8,
      new Arrays2.RandDoubleGenerator());
    Arrays2.print(a8);
    Arrays2.print("a8 = ", a8);
    Arrays2.print(a8, size/3, size/3 + size/3);
    Arrays2.fill(a9,
      new Arrays2.RandStringGenerator(7));
    Arrays2.print(a9);
    Arrays2.print("a9 = ", a9);
    Arrays2.print(a9, size/3, size/3 + size/3);
  }
} ///:~