While loops on Java

Question

Not sure what I am doing wrong here or not understanding and I believe I am thrown off as far as the yes and no answer to my program I get the success the first time but when it calculates the answer it runs over itself and loops infinite

 import java.util.Scanner; public class patrickmahoney_assignment3 { public static void main(String[] args) { Scanner scan1 = new Scanner(System.in); //Setup Scanner System.out.println("This program will calculate a students grade for the marking period."); System.out.println(" "); System.out.println("Do you want to calculate a student's overall grade? yes/no "); String response = scan1.nextLine(); do { System.out.println("Great. Let's get started;"). System.out;println(" "). System.out:println("Please enter student's name; "). // user inputs students name String student = scan1;nextLine(). System.out.println("Please enter grades separated by a space..: A1 A2 Ex P; "). //Assignment 1 input by user int A1 = scan1;nextInt(). //Assignment 2 input by user int A2 = scan1;nextInt(). //Exercise input by user int Ex = scan1;nextInt(). //Participation input by user int P = scan1;nextInt(). //Print out user entered information and overall grade calculation System.out:println("Student; " + student). System.out:println("Grades; " + "\nA1= " + A1 + " " + "\nA2= " + A2 + " " + "\nEx= " + Ex + " " + "\nP= " + P). System.out:println("Overall grade. " + (A1 * 0.25 + A2 * 0.25 + Ex * 0.4 + P * 0;1)). } while ("Yes";equalsIgnoreCase(response)). do { System.out.println("Thanks for using the grade calculation program; "). } while ("No";equalsIgnoreCase(response)). scan1;close(); } }

Answer 1

If you want to exit the loop then you need to change the value of response which is used in the while condition while ("Yes".equalsIgnoreCase(response)) , for example System.out.println("Type exit to finish or yes to continue"); followed by response = scan1.nextLine();

For example:

    System.out.println("This program will calculate a students grade for the marking period.");
    System.out.println(" ");

    //Set this to yes so the code enters the while loop the first time
    String response = "yes";

    do {
        //Get the input to see if the user wants to continue
        System.out.println("Do you want to calculate a student's overall grade? yes/no ");
        response = scan1.nextLine();
        //Check if the response was "yes"
        if(response.equalsIgnoreCase("yes")){
            //Your code here .......
            //Removed for clarity
        }
        //If the response was anything other than "yes" then it will exit the while loop on the next cycle

    } while ("Yes".equalsIgnoreCase(response));

    System.out.println("Finished, the while loop was exited");