kingtower.java

编写了一个数字塔,根据输入的N值,来输出不同的结果

import java.io.*;
class Kingtower{
			public static void main(String[] args)throws IOException{
						int line,col,n,i,j,k,a;
						String str;
						BufferedReader buf;
						buf=new BufferedReader(new InputStreamReader(System.in));
						System.out.print("Input the value of n is:");
						str=buf.readLine();
						n=Integer.parseInt(str);
						for(i=1;i<=n;i++){
									for(j=1;j<=n-i;j++)
						      			System.out.print(" ");
						      a=-1;
						      for(k=1;k<=i;k++){
						      				a=a+2;
						      				System.out.print(a);}
						      line=i; 
						      for(;line>1;line--){
						      				a=a-2;
						      				System.out.print(a);}
									System.out.print("\n");			
						
						     }
						     
			          
			}
}