How to make a groundbreaking diamond using Java for statement wwww

public class sample {
	public static void main(String args[]){
		int i;

		for(i=0; i<5; i++){
			switch (i) {
			case 0:
				System.out.println("  *  ");
			case 1:
				System.out.println(" *** ");
			case 2:
				System.out.println("***** ");
			case 3:
				System.out.println(" *** ");
			case 4:
				System.out.println("  *  ");


We are looking for formulas that can be calculated as 1,3,5,3,1 using two variables.

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