I wrote this simple diamond pattern generator using the Java Programming language. It will ask the user how many rows and then the program will generate the diamond pattern based on the given rows by the user.
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Sample Program Output
Program Listing
diamond_pattern.java
package diamond;
import java.util.Scanner;
public class diamond_pattern {
public static void main(String args[])
{
int n, i, j, space = 1;
System.out.print("\n\n");
System.out.print("\tDiamond Pattern Generator in Java ");
System.out.print("\n\n");
System.out.print("\tGive number of rows: ");
Scanner s = new Scanner(System.in);
n = s.nextInt();
space = n - 1;
for (j = 1; j<= n; 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<= n - 1; j++)
{
for (i = 1; i<= space; i++)
{
System.out.print(" ");
}
space++;
for (i = 1; i<= 2 * (n - j) - 1; i++)
{
System.out.print("*");
}
System.out.println("");
}
System.out.print("\n");
System.out.print("\tEnd of Program");
System.out.print("\n");
}
}
