如何用java实现显示金字塔？答案如下
package nameyu;import java.util.Scanner;public class Test { /** * @param args */ public static void main(String[] args) { Scanner input=new Scanner(System.in); System.out.println("Enter the number of line"); int a =input.nextInt(); for(int i=1; i<=a; i++) { for(int j=(a-i)*3-1; j>=0; j--) { System.out.print(" "); } for(int j=i; j>=1; j--) { if(j<10) System.out.print(""); else System.out.print(" "); System.out.print(j); } for(int j=2; j<=i; j++) { if(j<10) System.out.print(""); else System.out.print(" "); System.out.print(j); } System.out.println(""); } } }
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