Heart Pattern in Java

by Online Tutorials Library July 22, 2022

Heart Pattern in Java

Heart Pattern is another complex pattern program that is rarely asked by the interviewers because of its complexity.

We print two types of heart patterns, i.e., a simple heart and some text inside the heart. We take the help of the Math class and the lineSeparator() method of the System. Let’s implement the code of both types of hearts. and understand the use of Math class and lineSeparator().

HeartPatternExample1.java

  // create class HeartPatternExample1 that will print Heart pattern  public class HeartPatternExample1  {      // main() method start      public static void main(String[] args)      {          // declare and initialize variable for output size          final int size = 4;                    // nested for loop to print the upper part of Heart          for (int m = 0; m < size; m++) {               for (int n = 0; n <= 4 * size; n++) {                  double pos1 = Math.sqrt(Math.pow(m – size, 2) + Math.pow(n – size, 2));                  double pos2 = Math.sqrt(Math.pow(m – size, 2) + Math.pow(n – 3 * size, 2));                     if (pos1 < size + 0.5 || pos2 < size + 0.5) {                      System.out.print(‘*’);                  } else {                       System.out.print(‘ ‘);                  }              }               System.out.print(System.lineSeparator());           }             // for loop to print the lower part of Heart           for (int m = 1; m <= 2 * size; m++)          {               for (int n = 0; n < m; n++) {                   System.out.print(‘ ‘);               }               for (int n = 0; n < 4 * size + 1 – 2 * m; n++) {                  System.out.print(“*”);              }               System.out.print(System.lineSeparator());           }      }  }  

Output:

Heart Pattern in Java

HeartPatternExample2.java

  // import required classes  package TutorAspire .JavaExample;    // create class HeartPatternExample1 that will print Heart pattern  public class HeartPatternExample2  {      // main() method start      public static void main(String[] args)      {          // declare and initialize variable for output size          final int size = 8;          final String msg = ” I love You “;                    // nested for loop to print the upper part of Heart          for (int m = 0; m < size; m++) {              for (int n = 0; n <= 4 * size; n++) {                  double pos1 = Math.sqrt(Math.pow(m – size, 2) + Math.pow(n – size, 2));                  double pos2 = Math.sqrt(Math.pow(m – size, 2) + Math.pow(n – 3 * size, 2));                     if (pos1 < size + 0.5 || pos2 < size + 0.5) {                      System.out.print(‘*’);                  } else {                      System.out.print(‘ ‘);                  }              }              System.out.print(System.lineSeparator());          }                    // for loop to print the lower part of Heart          for (int m = 1; m <= 2 * size; m++) {              for (int n = 0; n < m; n++) {                  System.out.print(‘ ‘);              }                 for (int n = 0; n < 4 * size + 1 – 2 * m; n++) {                  if (m >= 2 && m <= 4) {                      int position = n – (4 * size – 2 * m – msg.length()) / 2;                      if (position < msg.length() && position >= 0) {                          if (m == 3) {                              System.out.print(msg.charAt(position));                          } else {                              System.out.print(‘ ‘);                          }                      }                      else {                          System.out.print(‘*’);                      }                  }                  else {                      System.out.print(‘*’);                  }              }              System.out.print(System.lineSeparator());          }      }  }  

Output:

Heart Pattern in Java

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