Heres the entire code, its basically reading input and asking for an integer until it is given. But I cannot seem to understand why after my loop, the scanner is not registering the call to rotate = scan.nextLine();?
import java.util.Scanner;
public class PJ{
public static void main(String []args){
Scanner scan = new Scanner(System.in);
String phrase;
String phraseMut;
int index =0 ;
boolean bool = false;
String rotate;
System.out.println("Enter your word or phrase: ");
phrase = scan.nextLine();
phraseMut = phrase;
System.out.println();
do {
System.out.println("Enter an integer: ");
//scan.nextLine();
if (scan.hasNextInt()) {
index = scan.nextInt();
bool = true;
}/*if (index > phraseMut.length()) {
System.out.println("Index is out of bounds.");
System.out.println("Please enter an integer value between 0 and
"+phraseMut.length());
}*/else {
bool = false;
System.out.println("Error: Index is not Integer.");
scan.nextLine();
}
}while (!bool);
System.out.println();
System.out.println("Rotating phrase to bring index "+index+" to the front. . .");
int count =0;
for(int i = 0; i < index; i++){
phraseMut = phraseMut.substring(1,phrase.length())+""+phraseMut.substring(0,1);
count++;
System.out.println(phraseMut);
}
System.out.println();
System.out.println("Do you want to rotate again? (yes/no)");
rotate = scan.nextLine();
rotate = rotate.toLowerCase();
double placeholder = 0.0; //will be average shifts per rotation
if( rotate.equals ("no")){
System.out.println("\""+phrase+"\" rotated "+count+
" times, final result \""+phraseMut+"\"");
System.out.println("Average shifts per rotation: "+placeholder);
}
if( rotate.equals("yes")){
System.out.println("Enter the index of a character in your phrase: ");
index = scan.nextInt();
scan.nextLine();
System.out.println();
System.out.println("Rotating phrase to bring index "+index+" to the front. . .");
for(int i = 0; i < index; i++){
phraseMut = phraseMut.substring(1,phrase.length())+""+phraseMut.substring(0,1);
count++;
System.out.println(phraseMut);
}
}
System.out.println();
}
}
specifically the block of code:
System.out.println("Do you want to rotate again? (yes/no)");
rotate = scan.nextLine();
rotate = rotate.toLowerCase();
is not scanning and I do not understand why? There may be some very nuance thing that I am missing here but I would like to add that I am also very new to code and this specifically has been giving me trouble for a view days. Any input is appreciated.
