간단한 별 찍기

public class part18 {
	public static void main(String[] args) {
*
**
***
****
*****
****
***
**
*
int len = 0;
for (int i = 0; i < 9; i++) {
	if(i < 5 ) len ++;
    else len --;
    for(int j = 0; j < len; j++) {
    	System.out.print("*");
    }
    System.out.println();
}

**
*
****
***
*****

int arr[] = {2, 1, 4, 3, 5};
	for(int i = 0; i < 5; i++) {
		for(int j = 0; j <arr[i]; j++) {
        System.out.print("*");
        }
        System.out.println();
    }
    
    }
    }