Parsing Strings
Completed
Read two words that contain numbers, e.g. 42 and 3.5. Convert them with Integer.parseInt and Double.parseDouble and print their product.
Input
Two lines: an integer, then a decimal.
Output
The product.
Example
Input
42 3.5
Output
147.0
Editor
Java
Hints
Integer.parseInt("42") gives the int 42.
Solution explanation
The wrapper classes (Integer, Double, …) convert between text and numbers.
Show solution
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
String first = sc.nextLine();
String second = sc.nextLine();
int a = Integer.parseInt(first.trim());
double b = Double.parseDouble(second.trim());
System.out.println(a * b);
}
}