JAVA经典算法(十六)

题目：输出9*9口诀。

1、9行9列的乘法口诀：

package cn.ls.lanqiao;

public class Test16 {

	public static void main(String[] args) {
		int i = 0;
		int j = 0;
		for (i = 1; i <= 9; i++) {
			for (j = 1; j <= 9; j++)
				System.out.print(i + "*" + j + "=" + i * j + "\t");
			System.out.println();
		}

	}
}

 2、不出现重复的乘积(下三角)：

package cn.ls.lanqiao;

public class Test16 {

	public static void main(String[] args) {
		int i = 0;
		int j = 0;
		for (i = 1; i <= 9; i++) {
			for (j = 1; j <= i; j++)
				System.out.print(i + "*" + j + "=" + i * j + "\t");
			System.out.println();
		}
	}
}

3、上三角：

package cn.ls.lanqiao;

public class Test16 {

	public static void main(String[] args) {
		int i = 0;
		int j = 0;
		for (i = 1; i <= 9; i++) {
			for (j = i; j <= 9; j++)
				System.out.print(i + "*" + j + "=" + i * j + "\t");
			System.out.println();
		}
	}
}