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star diamond.java
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import java.util.Scanner;
public class DiamondPattern
{
public static void main(String args[])
{
int row, i, j, space = 1;
System.out.print("Enter the number of rows you want to print: ");
Scanner sc = new Scanner(System.in);
row = sc.nextInt();
space = row - 1;
for (j = 1; j<= row; j++)
{
for (i = 1; i<= space; i++)
{
System.out.print(" ");
}
space--;
for (i = 1; i <= 2 * j - 1; i++)
{
System.out.print("*");
}
System.out.println("");
}
space = 1;
for (j = 1; j<= row - 1; j++)
{
for (i = 1; i<= space; i++)
{
System.out.print(" ");
}
space++;
for (i = 1; i<= 2 * (row - j) - 1; i++)
{
System.out.print("*");
}
System.out.println("");
}
}
}