Answer:
while (Num>=0) {
System.out.println("enter a another number");
Num = in.nextInt();
}
Explanation:
The complete java code prompting a user to enter a number until a negative number is entered is given below:
import java.util.Scanner;
public class num6 {
public static void main (String [] args) {
Scanner in = new Scanner(System.in);
System.out.println("enter a number");
int Num = in.nextInt();
while (Num>=0) {
System.out.println("enter a another number");
Num = in.nextInt();
}
System.out.println("Done.");
return;
}
}
Answer:
Because of refraction.
Explanation:
Light coming from fish passes through two medium, one is water and another is air. As the density of medium is changing from high to low, the light bends away from the normal. So to the human eyes, the fish appears to be above its actual position.
Answer:
travel
Explanation:
One real world example of a singly-linked list would be travel. Imagine that you want to take a trip to your nearest neighbor state. To do so you would need to take a 2 buses and a train, but you can't just take any or in any order you wish. You first need to take the first bus at your current location, get off at the train station, take that train to the final stop, get off and take the bus to the final destination. Meaning there is a sequence of connected events that you must follow in order to get to your destination and the same opposite sequence of events to get back. This is exactly like a singly-linked list.
