我一直在“非法开始表达”，我不知道为什么

Question

正如标题中所说，我在代码部分的代码中得到了非法的表达式。我相信我把所有东西都放在了正确的位置，但我仍然得到一个非法的表达。

public class FacebookUsers 
{

  public static void main(String[] args)
  {
      int  months = 1;

      for ( int people = 500000000; people < 2000000000; months ++)
      {
          people = (peoplestart) * ((1.05)**(months));
      }

      System.out.println("It took "+months+" to reach one billion users on "
              + "facebook at the rate of 5% growth.");
      months = 1;
      for ( int people = 500000000; people < 2000000000; months ++)
      {
          people = people * ((1.05)**(months));
      }
      System.out.println("It took "+months+" to reach two billion users on "
            + "facebook at the rate of 5% growth.");

   }

}

感谢任何帮助，并提前感谢您。

Answer 1

Java没有**运算符。使用java.lang.Math.pow。

http://docs.oracle.com/javase/tutorial/java/nutsandbolts/operators.html