Answer:
This is because the key in relationships['jimmy'] is wrong. The first letter "j" should be uppercase. The key in the given dictionary is "Jimmy" and therefore a lowercase "j" will result in a KeyError exception. The key is case sensitive and therefore a minor mistake in a single letter either in lowercase or uppercase will cause the error. The correct usage of key to address the value should be relationships["Jimmy"].
Answer:
..
Explanation:
i dont really know. I am just answering for the sake of points lol
Refraction represents a change in the direction of propagation when beams of light encounter a medium with a different density.
Reflection is the return of light to the medium it came from when it encounters a mirror.
Hi,
the program is as follows
___________________________________________________________
import java.io.*;
class doubleval
{
public static void main()throws IOException
{
DataInputStream dt=new DataInputStream(System.in);
System.out.println("Enter NUMBER WHOSE DOUBLE U WANT TO PRINT");
int n=Integer.parseInt(dt.readLine());
for(int i=n;i<=100;i=2*i)
{
System.out.println(i);
}
}
}
