Hollow Pyramid
1234567891011121314151617181920
class Main {
public static void main(String[] args) {
int n = 5;
for(int i = 0; i < n; i++){
for(int j = n; j > i; j--){
System.out.print(" ");
}
for(int j = 1; j <= i*2+1; j++){
if(j == 1 || j == i*2+1 || i == 0 || i == n-1){
System.out.print("*");
}
else{
System.out.print(" ");
}
}
System.out.println();
}
}
}
Java
INFO