在Java中编程实现九九乘法表,可以使用嵌套循环来完成。以下是几种不同的实现方法:
方法一:使用for循环
```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();
}
}
}
```
方法二:使用while循环
```java
public class MultiplicationTable {
public static void main(String[] args) {
int i = 1;
while (i <= 9) {
int j = 1;
while (j <= i) {
System.out.print(j + " * " + i + " = " + (i * j) + "\t");
j++;
}
System.out.println();
i++;
}
}
}
```
方法三:使用printf格式化输出
```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.printf("%d * %d = %-3d", j, i, i * j);
}
System.out.println();
}
}
}
```
方法四:使用嵌套的for循环输出九九乘法表
```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();
}
}
}
```
方法五:使用while循环打印九九乘法表
```java
public class MultiplicationTable {
public static void main(String[] args) {
int i = 1, j = 9;
while (i <= 9) {
while (j >= 1) {
System.out.print(j + " * " + i + " = " + (i * j) + "\t");
j--;
}
System.out.println();
i++;
}
}
}
```
方法六:使用嵌套的for循环输出九九乘法表
```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();
}
}
}
```
方法七:使用嵌套的for循环输出九九乘法表
```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();
}
}
}
```
方法八:使用嵌套的for循环输出九九乘法表
```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();
}
}
}
```
方法九:使用嵌套的for循环输出九九乘法表