jiaogu.java

来自「开始学JAVA的几个程序」· Java 代码 · 共 24 行

import java.io.*;
class Jiaogu
{
  public static void main(String args[])
  {
   System.out.print("\nplease input a word");
   try
    {
      BufferedReader br=new BufferedReader(
                 new InputStreamReader(System.in));
      String s=br.readLine();
      int a=Integer.parseInt(s);
      while(a!=1)
      {
        System.out.print(" "+a);
        if(a%2==1)
         a=a*3+1;
        else
         a/=2; 
      }       
      System.out.println(" "+a);    
    }catch(Exception e){};
  }
}