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hollow_daimond.java
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public class hollow_daimond {
public static void main(String[] args) {
hollowDaimond(6);
}
public static void hollowDaimond(int rows) {
for (int i = 0; i < rows; i++) {
for (int j = 0; j < rows - i; j++) {
System.out.print(" ");
}
System.out.print("*");
if (i > 0) {
for (int j = 0; j < 2 * i - 1; j++) {
System.out.print(" ");
}
System.out.print("*");
}
System.out.println();
}
for (int i = rows - 2; i >= 0; i--) {
for (int j = 0; j < rows - i; j++) {
System.out.print(" ");
}
System.out.print("*");
if (i > 0) {
for (int j = 0; j < 2 * i - 1; j++) {
System.out.print(" ");
}
System.out.print("*");
}
System.out.println();
}
}
}