The answer would be 25 years is what it would take for it to double 2000x.04=80 . The interest would add up to 80 for 1 year. Multiple 80 by 25 and you get 2000.
In your "count spaces method" before the for loop, you want to declare an int variable (let's call it spc)
then, each time you find that charat, spc++.
also, the string must be declared in the main method, not the spaces count method.
The actual code:
public class CountSpaces{
public static void main(String[] args){
String instring = "(your quote here)";
int spaces = calculateSpaces(instring);
System.out.println("The number of spaces is " + spaces);
}
public static int calculateSpaces(String in){
int spc = 0;
for(int i= 0; i<in.length; i++){
if(in.charAt(i)== ' '){
spc++;
}
}
return spc;
}
}
that should be it. If you have any questions, feel free to reach out.