number2.java

来自「实验目的：让学生掌握开发Java应用程序的三个步骤：编写源文件、编译源文件和运行」· Java 代码 · 共 23 行

import javax.swing.JOptionPane;

public class Number2{
	public static void main(String[] args){
		String output = "\n";
		for (int i=9;i>0;i--){
			int t=0;
			for (int j=0;j<i-1;j++){
				output += "  ";
			}
			for (t=1;t<=9-i+1;t++){
				output += t;
			}
			if (t!=2){
				for (int f=t-2;f>0;f--){
					output += f;
				}
			}
			output += "\n";
		}
		JOptionPane.showMessageDialog(null,output,"Example2 Output",JOptionPane.INFORMATION_MESSAGE);
	}
}