mn.java

java 编程的一些简单例子

import java.io.*;
 class MN
{
   static int Factorial (int n)
   {
     if(n==0)
	return 1;   
     else
	return n*Factorial(n-1);
    }
}
public class delta
{
public  static void  main(String args[])
{
    String s;
    int n=0;
    System.out.print("Enter a int shu please:");
   try{
         BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
	 s=br.readLine();
         n=Integer.parseInt(s);
      }catch(IOException e){}
  for(int i=0;i<=n;i++)
      {	
          for(int j=0;j<=i;j++)
	      System.out.print(" "+MN.Factorial(i)/(MN.Factorial(j)*MN.Factorial(i-j)));
       }
}
}