Write a Java program to print pyramid numbers pattern using for loop.
package Shapes3;
import java.util.Scanner;
public class PyramidNum1 {
private static Scanner sc;
public static void main(String[] args) {
sc = new Scanner(System.in);
System.out.print("Enter Pyramid Number Pattern Rows = ");
int rows = sc.nextInt();
System.out.println("Printing Pyramid Number Pattern");
for (int i = 1; i <= rows; i++ )
{
for (int j = rows; j > i; j-- )
{
System.out.print(" ");
}
for(int k = 1; k <= i; k++)
{
System.out.print(i + " ");
}
System.out.println();
}
}
}
This program prints the pyramid pattern of numbers using a while loop.
package Shapes3;
import java.util.Scanner;
public class PyramidNum2 {
private static Scanner sc;
public static void main(String[] args) {
sc = new Scanner(System.in);
System.out.print("Enter Pyramid Number Pattern Rows = ");
int rows = sc.nextInt();
System.out.println("Printing Pyramid Number Pattern");
int j, k, i = 1;
while(i <= rows )
{
j = rows;
while(j > i)
{
System.out.print(" ");
j--;
}
k = 1;
while(k <= i)
{
System.out.print(i + " ");
k++;
}
System.out.println();
i++;
}
}
}
Enter Pyramid Number Pattern Rows = 5
Printing Pyramid Number Pattern
1
2 2
3 3 3
4 4 4 4
5 5 5 5 5
This Java example program displays the pyramid pattern of numbers using the do while loop.
package Shapes3;
import java.util.Scanner;
public class PyramidNum3 {
private static Scanner sc;
public static void main(String[] args) {
sc = new Scanner(System.in);
System.out.print("Enter Rows = ");
int rows = sc.nextInt();
System.out.println("====");
int j, k, i = 1;
do
{
j = rows;
do
{
System.out.print(" ");
} while(j-- > i);
k = 1;
do
{
System.out.print(i + " ");
} while(++k <= i);
System.out.println();
} while(++i <= rows );
}
}
Enter Rows = 9
====
1
2 2
3 3 3
4 4 4 4
5 5 5 5 5
6 6 6 6 6 6
7 7 7 7 7 7 7
8 8 8 8 8 8 8 8
9 9 9 9 9 9 9 9 9
