Question

实心菱形转换成空心菱形代码。 java语言

Answer 1

public class Diamond {
public static void main(String[] args) {
printHollowRhombus(6);
}

public static void printHollowRhombus(int size) {
if (size % 2 == 0) {
size++;// 计算菱形大小
}
for (int i = 0; i < size / 2 + 1; i++) {
for (int j = size / 2 + 1; j > i + 1; j--) {
System.out.print(" ");// 输出左上角位置的空白
}
for (int j = 0; j < 2 * i + 1; j++) {
if (j == 0 || j == 2 * i) {
System.out.print("* ");// 输出菱形上半部边缘
} else {
System.out.print(" ");// 输出菱形上半部空心
}
}
System.out.println(""); //换行
}
for (int i = size / 2 + 1; i < size; i++) {
for (int j = 0; j < i - size / 2; j++) {
System.out.print(" ");// 输出菱形左下角空白
}
for (int j = 0; j < 2 * size - 1 - 2 * i; j++) {
if (j == 0 || j == 2 * (size - i - 1)) {
System.out.print("* ");// 输出菱形下半部边缘
} else {
System.out.print(" ");// 输出菱形下半部空心
}
}
System.out.println(""); //换行
}
}
}