忆当年之九九乘法表

Java控制台打印九九乘法表

public class PrintTable {
    
    public static void main(String[] args) {
        
        for (int column = 1; column < 10; column++) {
            for (int row = 1; row < 10; row++) {
                if (row <= column) {
                    System.out.print(row + " x " + column + " = " + (row*column));
                    System.out.print("\t");
                }
            }
            System.out.println("");
        }
        
    }

}

效果：

1 x 1 = 1    
1 x 2 = 2    2 x 2 = 4    
1 x 3 = 3    2 x 3 = 6    3 x 3 = 9    
1 x 4 = 4    2 x 4 = 8    3 x 4 = 12    4 x 4 = 16    
1 x 5 = 5    2 x 5 = 10    3 x 5 = 15    4 x 5 = 20    5 x 5 = 25    
1 x 6 = 6    2 x 6 = 12    3 x 6 = 18    4 x 6 = 24    5 x 6 = 30    6 x 6 = 36    
1 x 7 = 7    2 x 7 = 14    3 x 7 = 21    4 x 7 = 28    5 x 7 = 35    6 x 7 = 42    7 x 7 = 49    
1 x 8 = 8    2 x 8 = 16    3 x 8 = 24    4 x 8 = 32    5 x 8 = 40    6 x 8 = 48    7 x 8 = 56    8 x 8 = 64    
1 x 9 = 9    2 x 9 = 18    3 x 9 = 27    4 x 9 = 36    5 x 9 = 45    6 x 9 = 54    7 x 9 = 63    8 x 9 = 72    9 x 9 = 81