public class ShortTest {
public static void main(String[] args) {
Scanner s = new Scanner(System.in);
String num = s.nextLine();
int number = Integer.parseInt(num);
ShortTest.printDiagram(number);
}
public static void printDiagram(int i){
for (int le=0;le<=i;le++){
for(int j=0;j
System.out.print('*');
for (int k=0;k
System.out.print('.');
}
System.out.println();
}
}
}输入4,打出来*.*..*..*...*...*...*.*.*.*.