Java Exercises: Accepts an integer (n) and computes the value of n+nn+nnn
Java Basic: Exercise-44 with Solution
Write a Java program that accepts an integer (n) and computes the value of n+nn+nnn.
Sample Solution:
Java Code:
import java.util.Scanner;
public class Exercise44 {
public static void main(String[] args) {
int n;
char s1, s2, s3;
Scanner in = new Scanner(System.in);
System.out.print("Input number: ");
n = in .nextInt();
System.out.printf("%d + %d%d + %d%d%d\n", n, n, n, n, n, n);
}
}
Sample Output:
Input number: 5 5 + 55 + 555
Flowchart:

Java Code Editor:
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Java: Tips of the Day
getEnumMap
Converts to enum to Map where key is the name and value is Enum itself.
public static <E extends Enum<E>> Map<String, E> getEnumMap(final Class<E> enumClass) { return Arrays.stream(enumClass.getEnumConstants()) .collect(Collectors.toMap(Enum::name, Function.identity())); }
Ref: https://bit.ly/3xXcFZt
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