代码语言：javascript复制
package *;
/**
* @program: data-structure
* @description: 正方形
* @author: ChenWenLong
* @create: 2019-09-10 14:46
**/
public class Square {
public static void main(String[] args) {
printSolidSquare(10);
printHollowSquare(10);
}
/**
* 功能描述:
* 〈答应实心的正方形,rowNum为你想要打印正方形的行数〉
*
* @params : [rownum]
* @return : void
* @author : cwl
* @date : 2019/9/10 14:46
*/
public static void printSolidSquare(int rowNum) {
if (rowNum > 1) {
for (int i = 1; i <= rowNum; i ) {
for (int j = 1; j <= rowNum; j ) {
System.out.print("*");
}
System.out.println();
}
} else {
System.out.println("数字应大于1");
}
}
/**
* 功能描述:
* 〈打印空心正方形〉
*
* @params : [rownum]
* @return : void
* @author : cwl
* @date : 2019/9/10 14:50
*/
public static void printHollowSquare(int rowNum) {
if (rowNum > 1) {
for (int i = 1; i <= rowNum; i ) {
for (int j = 1; j <= rowNum; j ) {
if (i == 1 || i == rowNum) {
System.out.print("*");
} else {
if (j == 1 || j == rowNum) {
System.out.print("*");
} else {
System.out.print(" ");
}
}
}
System.out.println();
}
} else {
System.out.println("数字应大于1");
}
}
}
