nestedloop.java

《A first book of java》by Gary J.Bronson 北大出版社

public class NestedLoop
{
  public static void main(String[] args)
  {
    int i, j;
    for(i = 1; i <= 5; i++)          // start of outer loop <-----------+
    {                                         //                        |
      System.out.println("\ni is now " + i);  //                        |
                                              //                        |
      for(j = 1; j <= 4; j++)                 // start of inner loop    |
        System.out.print("  j = " + j);       // end of inner loop      |
    }                                // end of outer loop   <-----------+
 
  }
}