初学Java 九九乘法表

public class MultiplicationTable {
  public static void main(String[] args) {
      System.out.println("              Multiplication Table");
      System.out.print("    ");
      for (int j = 1; j <= 9; j++)
          System.out.print("   " + j);
      
      System.out.println("
----------------------------------------");
      
      for (int i = 1; i <= 9; i++) {
          System.out.print(i + " | ");
          for (int j = 1; j <=9; j++) {
              System.out.printf("%4d", i * j);
          }
          System.out.println();
      }
  }
}