arraytest.java

本java源程序包括了大量的学习程序（共27章）方便大家学习

class ArrayTest
{
  int a[] = new int[10];
  //定义int整形数组a[]，并创建数组对象，设定其最多可以存储10个整型数
  int b[] = {10,9,8,7,6,5,4,3,2,1};
  //定义int整形数组b[]，并初始化数组，
  char c[] = {'a','b','c','d','e'};
  String s[];  //声明string字符串数组s[]

  public ArrayTest()          //类构造方法
  {
    //初始化数组a[]
    a[0] = 1; a[1] = 2; a[2] = 3; a[3] = 4; a[4] = 5;
    //创建string字符串数组s[]对象，并初始化
    s = new String[ ]{"Hello","every","one"};
    //输出数组a[]中数据的个数及内容
    System.out.println("Array a[] have "+a.length+" numbers.They are:");
    for(int i=0;i<a.length;i++)
    {
      if(i==5) System.out.println();  //换行
      System.out.print("a["+i+"]="+a[i]+",");
    }
    System.out.println("\n");  //换行
    //输出数组b[]中数据的个数及内容
    System.out.println("Array b[] have "+b.length+" numbers.They are:");
    for(int i=0;i<b.length;i++)
    {
      if(i==5) System.out.println();  //换行
      System.out.print("b["+i+"]="+b[i]+",");
    }
    System.out.println("\n");  //换行
    //输出数组c[]中数据的个数及内容
    System.out.println("Array c[] have "+b.length+" letters.They are:");
    for(int i=0;i<c.length;i++)
    {
      System.out.print("c["+i+"]="+c[i]+",");
    }
    System.out.println("\n");  //换行
    //输出数组s[]中字符串的个数及内容
    System.out.println("String array s[] have "+s.length+" strings.They are:");
    for(int i=0;i<s.length;i++)
    {
      System.out.println(s[i]);
    }
  }
  public static void main(String argv[])
  {
    ArrayTest arrayTest = new ArrayTest();
  }
}