Having trouble with the do while/while loop and the switch statement. I got some of the switch statement but cant get the program to repeat itself like it should.What i have so far for my code is below. Any help is appreciated... i am not sure what I am doing wrong or what i am missing. I am completely lost on the while loop and where and how to use it in this scenario.
import java.util.Scanner;
public class sampleforchegg {
public static void main(String[] args) {
//while loop goes here
Scanner console= new Scanner (System.in);
printAsterisks(); //printing 2 lines of 50 asterisk
int waist = inputWaist(); //taking input of waist
int height = inputHeight(); //taking input of height
String gender = inputGender(); //taking input of gender
String message = "";
int minutes = getMinutes(console);
printAsterisks();
int ratio = waist_to_height_ratio(waist,height); //Calculating the
ratio
String s= "y";
if(gender.equalsIgnoreCase("f")) //get the message using the
waist to height ration and gender
{ //open if/else
if(ratio < 42)
message = "You are considered underweight.";
else if(ratio >= 42 && ratio <= 48)
message = "You are at a healthy weight!";
else if(ratio >= 48.01 && ratio <= 57)
message = "You are considered overweight.";
else if(ratio > 57)
message = "You are considered obese.";
} //close if/else
else
{ //open if/else
if(ratio < 43)
message = "You are considered underweight.";
else if(ratio >= 43 && ratio <= 52)
message = "You are at a healthy weight!";
else if(ratio >= 52.01 && ratio <= 62)
message = "You are considered overweight.";
else if(ratio > 62)
message = "You are considered obese.";
} //close if/else
display(waist, height, gender, ratio, message, minutes); //print the information
} //closing main
//#1 METHOD- method that prints two lines of asterisks
public static void printAsterisks()
{ //open forloop
for(int i = 0; i < 2; i++)
{
for(int j = 0; j < 50; j++)
{
System.out.print("*");
}
System.out.println();
}
} //closing forloop
//#2 METHOD- function for taking input of the waist in inches
public static int inputWaist()
{
Scanner scan = new Scanner(System.in); //Creating an object of
scanner class
System.out.print("Please enter your waist measurement, in inches:
"); //Printing the appropriate message to the user
int waist = scan.nextInt(); //Taking the input
System.out.println();
return waist; //Returning the value of waist
}
//#3 METHOD- Function for taking the input of height in feet and
inches
public static int inputHeight()
{
Scanner scan = new Scanner(System.in); // Creating an object of
Scanner class.
System.out.print("Please enter your height measurement, in feet and
inches (Separate feet and inches by space): ");
int height_feet =scan.nextInt();
System.out.println();
int height_inches = scan.nextInt();
return height_feet*12 + height_inches; //converting the feet to
inches by multiplying 12
}
//#4 METHOD- Fuction for taking the input of the users
gender
public static String inputGender()
{
Scanner scan = new Scanner(System.in); // Creating an object of
Scanner class.
System.out.print("Please enter your gender, F for female or M for
male: ");
String gender = scan.next();
System.out.println();
return gender;
}
//#5 METHOD= fuction for taking total minutes of exercise in 7
days
public static int getMinutes (Scanner console)
{
int sum=0, minutes;
for (int i=1; i<=7; i++)
{ System.out.print("Please enter the typical number of minutes of
exercise you get on day" + i + " of each week: ");
sum = sum + console.nextInt();
}
minutes = sum;
return minutes;
}
//#6 METHOD- for caculating the ratio of wait/height
public static int waist_to_height_ratio(int waist, int
height)
{
double percentage;
percentage = (waist*1.0)/(height*1.0) * 100.0; // Converting the
integer values of double and calculating the percentage
//ROunding the double value to the nearest integer and converting
long integer returned be Math.round()
int k= (int)Math.round(percentage);
return k; //returning the percentage
}
// #7 METHOD- for printing out users results
public static void display(int waist, int height, String gender,
int ratio, String message, int minutes)
{
System.out.println("Waist = " + waist + " inches");
System.out.println("Height = " + height + " inches");
System.out.println("Gender = " + gender);
System.out.println("Waist to Height Ratio = " + ratio + "%");
System.out.println(message);
System.out.println("Number of Minutes of Exercise in a Typical Week
= " + minutes);
System.out.println("Would you like to perform health calculation of
another user(enter Y/N)");
Scanner scan = new Scanner(System.in); // Creating an object of
Scanner class.
String s=scan.next();
switch(s)
{
case "y": System.out.println("");
break;
default: System.out.println(" Thank you for using health
calculator! Good Bye!");
break;
}
}
} //Closes class
Hi please find the modified program below:
import java.util.Scanner;
public class sampleforHomeworkLib {
public static void main(String[] args) {
//while loop goes here
Scanner console= new Scanner (System.in);
String s= "y";
do
{
printAsterisks(); //printing 2 lines of 50 asterisk
int waist = inputWaist(); //taking input of waist
int height = inputHeight(); //taking input of height
String gender = inputGender(); //taking input of gender
String message = "";
int minutes = getMinutes(console);
printAsterisks();
int ratio = waist_to_height_ratio(waist,height); //Calculating the
ratio
if(gender.equalsIgnoreCase("f")) //get the message using the
waist to height ration and gender
{ //open if/else
if(ratio < 42)
message = "You are considered underweight.";
else if(ratio >= 42 && ratio <= 48)
message = "You are at a healthy weight!";
else if(ratio >= 48.01 && ratio <= 57)
message = "You are considered overweight.";
else if(ratio > 57)
message = "You are considered obese.";
} //close if/else
else
{ //open if/else
if(ratio < 43)
message = "You are considered underweight.";
else if(ratio >= 43 && ratio <= 52)
message = "You are at a healthy weight!";
else if(ratio >= 52.01 && ratio <= 62)
message = "You are considered overweight.";
else if(ratio > 62)
message = "You are considered obese.";
} //close if/else
display(waist, height, gender, ratio, message, minutes); //print
the information
System.out.println("Would you like to perform calculations for
another persion (enter y or n)");
s=console.next();
}while (s.equalsIgnoreCase("y"));
System.out.println(" Thank you for using health calculator! Good
Bye!");
} //closing main
//#1 METHOD- method that prints two lines of asterisks
public static void printAsterisks()
{ //open forloop
for(int i = 0; i < 2; i++)
{
for(int j = 0; j < 50; j++)
{
System.out.print("*");
}
System.out.println();
}
} //closing forloop
//#2 METHOD- function for taking input of the waist in inches
public static int inputWaist()
{
Scanner scan = new Scanner(System.in); //Creating an object of
scanner class
System.out.print("Please enter your waist measurement, in inches:
"); //Printing the appropriate message to the user
int waist = scan.nextInt(); //Taking the input
System.out.println();
return waist; //Returning the value of waist
}
//#3 METHOD- Function for taking the input of height in feet and
inches
public static int inputHeight()
{
Scanner scan = new Scanner(System.in); // Creating an object of
Scanner class.
System.out.print("Please enter your height measurement, in feet and
inches (Separate feet and inches by space): ");
int height_feet =scan.nextInt();
System.out.println();
int height_inches = scan.nextInt();
return height_feet*12 + height_inches; //converting the feet to
inches by multiplying 12
}
//#4 METHOD- Fuction for taking the input of the users
gender
public static String inputGender()
{
Scanner scan = new Scanner(System.in); // Creating an object of
Scanner class.
System.out.print("Please enter your gender, F for female or M for
male: ");
String gender = scan.next();
System.out.println();
return gender;
}
//#5 METHOD= fuction for taking total minutes of exercise in 7
days
public static int getMinutes (Scanner console)
{
int sum=0, minutes;
for (int i=1; i<=7; i++)
{ System.out.print("Please enter the typical number of minutes of
exercise you get on day" + i + " of each week: ");
sum = sum + console.nextInt();
}
minutes = sum;
return minutes;
}
//#6 METHOD- for caculating the ratio of wait/height
public static int waist_to_height_ratio(int waist, int
height)
{
double percentage;
percentage = (waist*1.0)/(height*1.0) * 100.0; // Converting the
integer values of double and calculating the percentage
//ROunding the double value to the nearest integer and converting
long integer returned be Math.round()
int k= (int)Math.round(percentage);
return k; //returning the percentage
}
// #7 METHOD- for printing out users results
public static void display(int waist, int height, String gender,
int ratio, String message, int minutes)
{
System.out.println("Waist = " + waist + " inches");
System.out.println("Height = " + height + " inches");
System.out.println("Gender = " + gender);
System.out.println("Waist to Height Ratio = " + ratio + "%");
System.out.println(message);
System.out.println("Number of Minutes of Exercise in a Typical Week
= " + minutes);
//System.out.println("Would you like to perform health calculation
of another user(enter Y/N)");
//Scanner scan = new Scanner(System.in); // Creating an object of
Scanner class.
//String s=scan.next();
/*switch(s)
{
case "y": System.out.println("");
break;
default: System.out.println(" Thank you for using health
calculator! Good Bye!");
break;
}*/
}
} //Closes class
Output:
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