#C 程序移植

http://www.jianshu.com/p/6ae999d2d6ba/

package com.company;

public class Main {

    public static void main(String[] args) {

            int n=7,i,j,k;


            for(i=1;i<=(n+1/2);i++)

            {

                for(j=1;j<=(n-(i-1)*2-1)/2+1;j++)

                    if(i==1)

                    {

                        for(k=1;k<=(n-1)/2;k++)

                        {

                            System.out.print("*");

                        }

                        break;

                    }else

                        System.out.print("*");

                for(j=1;j<=(i-1)*2-1;j++)

                    System.out.print(" ");

                for(j=1;j<=(n-(i-1)*2-1)/2+1;j++)

                    System.out.print("*");

                if(i<=(n-1)/2)

                    System.out.print("\n");

            }

        System.out.print("\n");

            for(i=n/2;i>=1;i--)

            {

                for(j=1;j<=(n-(i-1)*2-1)/2+1;j++)

                    if(i==1)

                    {

                        for(k=1;k<=(n-1)/2;k++)

                        {

                            System.out.print("*");

                        }

                        break;

                    }else

                        System.out.print("*");

                for(j=1;j<=(i-1)*2-1;j++)

                    System.out.print(" ");

                for(j=1;j<=(n-(i-1)*2-1)/2+1;j++)

                    System.out.print("*");

                System.out.print("\n");

            }

        }

    }