Heart Pattern in Java

Heart Pattern is yet another intricate pattern program, however, due to its complexity, interviewers hardly ever inquire about it.

Method for Printing the Heart Number Pattern

• Put the value of the total row into the integer variable row.
• Put the column values into an inner loop to print them.
• Start by printing the left semi-circle using a nested for loop.
• Use a nested for loop to start printing the right semi-circle.
• To print an inverted pyramid beneath the semi-circles, use another nested loop.

Program 1: Print heart pattern in java

import java.io.*;
import java.util.*;
public class HeartPattern
{
  public static void main(String[]args)
  { 
for(int i=1; i<=2; i++)
     {
for(int k=1; k<=2-i; k++)
         {
System.out.print(" ");
         } 
for(int j=1; j<=2*i; j++)
         {
System.out.print("*");
         } 
for(int k=1; k<=2*(2-i+1)-1; k++)
         {
System.out.print(" ");
         } 
for(int j=1; j<=2*i; j++)
         {
System.out.print("*");
         } 
System.out.println();
     }
for(int i=1; i<=5; i++)
     {
for(int k=1; k<=i-1; k++)
         {
System.out.print(" ");
         } 
for(int j=1; j<=2*(5-i+1)-1; j++)
         {
System.out.print("*");
         } 
System.out.println();
     }
  } 
}

The output of the above program

Program 2: To print heart pattern in java

import java.io.*;
import java.util.*;
public class HeartPattern
{
  public static void main(String[] args) 
    {
        int r,c, row;
        Scanner sc= new Scanner(System.in); 
        System.out.print("Enter no of rows = ");
        row=sc.nextInt();
for(r = row/2; r <= row; r+=2)
        { 
for(c = 1; c < row-r; c+=2) 
            {  
System.out.print(" ");  
            }
for(c = 1; c <= r; c++)
            {  
System.out.print(r);  
            }
for(c = 1; c <= row-r; c++)
            {  
System.out.print(" ");  
            }  
for(c = 1; c <= r; c++)
            {  
System.out.print(r);  
            } 
System.out.println("");  
        }  


for(r = row; r >= 1; r--)
        {
for(c = r; c < row; c++)
            {  
System.out.print(" ");  
            } 


for(c = 1; c <= (r*2)-1; c++)
            {  
System.out.print(r);  
            }  


System.out.println("");  
        }  


    } 
}

The output of the above program