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Java Exercises: Display a specified pattern

Java Basic: Exercise-8 with Solution

Write a Java program to display the following pattern.

Sample Pattern : 

   J    a   v     v  a                                                  
   J   a a   v   v  a a                                                 
J  J  aaaaa   V V  aaaaa                                                
 JJ  a     a   V  a     a

Pictorial Presentation:

Java: Display a specified pattern

Sample Solution:

Java Code:

public class Exercise8 {
 
    public static void main(String[] args) {

        System.out.println("   J    a   v     v  a ");
        System.out.println("   J   a a   v   v  a a");
        System.out.println("J  J  aaaaa   V V  aaaaa");
        System.out.println(" JJ  a     a   V  a     a");
    }
}

Sample Output: 

  J    a   v     v  a                                                                                        
   J   a a   v   v  a a                                                                                       
J  J  aaaaa   V V  aaaaa                                                                                      
 JJ  a     a   V  a     a

Flowchart:

Flowchart: Java exercises: Display a specified pattern

Java Code Editor:

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Java: Tips of the Day

countOccurrences

Counts the occurrences of a value in an array.

Use Arrays.stream().filter().count() to count total number of values that equals the specified value.

public static long countOccurrences(int[] numbers, int value) {
    return Arrays.stream(numbers)
            .filter(number -> number == value)
            .count();
}

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