Java program to print a-z, A-Z sequentially

// PrintAlphabets.java

public class PrintAlphabets {

public static void main(String[] args) {

for (char alphabet = 'a'; alphabet <= 'z'; alphabet++) {
System.out.print(alphabet + " ");
}

System.out.println();

for (char alphabet = 'A'; alphabet <= 'Z'; alphabet++) {
System.out.print(alphabet + " ");
}
}

}

Output

a b c d e f g h i j k l m n o p q r s t u v w x y z
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z