乘法表

import java.util.*;
public class nineninelist {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		datastore();


	}

	private static void datadesplay(int array[][],int i,int j) {//输出函数
		// TODO Auto-generated method stub
		System.out.println(array[i][j]);
		
	}
	private static void datadesplay(int array[][],int i) {
		// TODO Auto-generated method stub
		for(int j=0;j<=i;j++)
			System.out.print((i+1)+"*"+(j+1)+"="+array[i][j]+"	");
		
	}
	private static void datadesplay(int array[][]) {
		// TODO Auto-generated method stub
		for(int i=0;i<9;i++)
		{
			for(int j=0;j<=i;j++)
				System.out.print((i+1)+"*"+(j+1)+"="+array[i][j]+"	");
			System.out.println();
		}
		
		
	}


	private static void datastore() {//存储和调用输出
		// TODO Auto-generated method stub
		int array[][]=new int[9][];int x,y;
		Scanner in=new Scanner(System.in);
		for(int i=0;i<9;i++)
		{ 
			array[i]=new int[i+1];
			for(int j=0;j<=i;j++)
			{
				array[i][j]=(i+1)*(j+1);
			}
		}
		while(true)
		{
			System.out.println("***乘法表***");
			System.out.println("1...位置输出");
			System.out.println("2...行输出");
			System.out.println("3...表打印");
			System.out.println("4...exit");
			int io=in.nextInt();
			switch(io)
			{
			case 1:
				x=in.nextInt();
				y=in.nextInt();
				datadesplay(array,x,y);
				break;
			case 2:
				 x=in.nextInt();
				datadesplay(array,x-1);
				break;
			case 3:
				datadesplay(array);
				break;
			case 4:
				System.exit(0);
				break;
			
			}
		}
	}

}