用java代码打印九九乘法表
时间: 2023-08-31 15:41:02 浏览: 119
### 回答1:
您可以使用如下Java代码打印九九乘法表:for(int i=1;i<=9;i++){
for(int j=1;j<=i;j++){
System.out.print(i +"*"+ j +"=" + i*j + "\t");
}
System.out.println();
}
### 回答2:
以下是使用Java代码打印九九乘法表的示例:
```java
public class Main {
public static void main(String[] args) {
// 使用两层循环打印九九乘法表
for (int i = 1; i <= 9; i++) {
for (int j = 1; j <= i; j++) {
// 打印每个乘法表格的公式和结果
System.out.print(j + " * " + i + " = " + (i * j) + "\t");
}
System.out.println(); // 换行
}
}
}
```
上述代码中,外层循环控制乘法表的行数,内层循环控制每行的列数。在内层循环中,打印了每个乘法表格的公式和结果,并使用制表符`\t`进行对齐。
运行该代码,可以得到如下输出:
```
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
```
### 回答3:
以下是一个用Java代码打印九九乘法表的例子:
```java
public class MultiplicationTable {
public static void main(String[] args) {
for (int i = 1; i <= 9; i++) {
for (int j = 1; j <= i; j++) {
System.out.print(j + " × " + i + " = " + (i * j) + "\t");
}
System.out.println();
}
}
}
```
这段代码使用了两个嵌套循环来打印九九乘法表。外层循环控制行数,内层循环控制每一行中的列数。乘法表中第 i 行有 i 列,所以内层循环的结束条件是 j <= i。在每轮内层循环中,使用 `System.out.print()` 方法打印每一个乘法表项。最后,换行符 `System.out.println()` 用于换行。
运行以上代码,输出结果如下:
```
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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