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Java Exercises: Print an American flag on the screen

Java Basic: Exercise-14 with Solution

Write a Java program to print an American flag on the screen.

Pictorial Presentation:

Java: Print an American flag on the screen

Sample Solution:

Java Code:

public class Exercise14 {
 
   public static void main(String[] args)
    {
        System.out.println("* * * * * * ==================================");
        System.out.println(" * * * * *  ==================================");
        System.out.println("* * * * * * ==================================");
        System.out.println(" * * * * *  ==================================");
        System.out.println("* * * * * * ==================================");
        System.out.println(" * * * * *  ==================================");
        System.out.println("* * * * * * ==================================");
        System.out.println(" * * * * *  ==================================");
        System.out.println("* * * * * * ==================================");
        System.out.println("==============================================");
        System.out.println("==============================================");
        System.out.println("==============================================");
        System.out.println("==============================================");
        System.out.println("==============================================");
        System.out.println("==============================================");
    }
}

Sample Output:

* * * * * * ==================================                                                                
 * * * * *  ==================================                                                                
* * * * * * ==================================                                                                
 * * * * *  ==================================                                                                
* * * * * * ==================================                                                                
 * * * * *  ==================================                                                                
* * * * * * ==================================                                                                
 * * * * *  ==================================                                                                
* * * * * * ==================================                                                                
==============================================                                                                
==============================================                                                                
==============================================                                                                
==============================================                                                                
==============================================                                                                
==============================================

Flowchart:

Flowchart: Java exercises: Print an American flag on the screen

Sample Solution:

Java Code:

public class Main {
 public static void main(String[] args) {
  String p1 = "* * * * * * ==================================\n * * * * *  ==================================";
  String p2 = "==============================================";
  for (int i = 0; i < 4; i++) {
   System.out.println(p1);
  }
  System.out.println("* * * * * * ==================================");
  for (int i = 0; i < 6; i++) {
   System.out.println(p2);
  }
 }
}

Output:

* * * * * * ==================================
 * * * * *  ==================================
* * * * * * ==================================
 * * * * *  ==================================
* * * * * * ==================================
 * * * * *  ==================================
* * * * * * ==================================
 * * * * *  ==================================
* * * * * * ==================================
==============================================
==============================================
==============================================
==============================================
==============================================
==============================================

Flowchart:

Flowchart: Java exercises: Print an American flag on the screen.

Java Code Editor:

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Java: Tips of the Day

similarity:

Returns an array of elements that appear in both arrays.
Use Arrays.stream().filter() to remove values that are not part of second, determined using Arrays.stream().anyMatch().

public static <T> T[] similarity(T[] first, T[] second) {
    return Arrays.stream(first)
            .filter(a -> Arrays.stream(second).anyMatch(b -> Objects.equals(a, b)))
            // Make a new array of first's runtime type, but empty content:
            .toArray(i -> (T[]) Arrays.copyOf(new Object[0], i, first.getClass()));
}

Ref: https://bit.ly/3CJ7huF