【JAVA实现九九乘法表】

【JAVA实现九九乘法表】,第1张

使用Eclipse开发工具

外层循环控制行
内层循环控制列


public class ForTest {
	@Test
	public void test() {
		for (int i = 0; i < 9; i++) {
			for (int j = 0; j < i + 1; j++) {
				System.out.print((j + 1) + " * " + (i + 1) + " = " + (i + 1) * (j + 1) + "\t");
			}
			System.out.println("\n");
		}
	}
}
  • 然后双击选中test,右键选择run as下的junit Test

输出

1 * 1 = 1	

1 * 2 = 2	2 * 2 = 4	

1 * 3 = 3	2 * 3 = 6	3 * 3 = 9	

1 * 4 = 4	2 * 4 = 8	3 * 4 = 12	4 * 4 = 16	

1 * 5 = 5	2 * 5 = 10	3 * 5 = 15	4 * 5 = 20	5 * 5 = 25	

1 * 6 = 6	2 * 6 = 12	3 * 6 = 18	4 * 6 = 24	5 * 6 = 30	6 * 6 = 36	

1 * 7 = 7	2 * 7 = 14	3 * 7 = 21	4 * 7 = 28	5 * 7 = 35	6 * 7 = 42	7 * 7 = 49	

1 * 8 = 8	2 * 8 = 16	3 * 8 = 24	4 * 8 = 32	5 * 8 = 40	6 * 8 = 48	7 * 8 = 56	8 * 8 = 64	

1 * 9 = 9	2 * 9 = 18	3 * 9 = 27	4 * 9 = 36	5 * 9 = 45	6 * 9 = 54	7 * 9 = 63	8 * 9 = 72	9 * 9 = 81

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