I amm at my very beginning at java and just wanted to ask. I want to ask the user to put Yes/No to a question and proceed to the next question. How do I do it?
import java.util.Scanner;
public class sff {
public static void main (String args[]) {
System.out.println("Hello There! We want to ask you some questions! but first: ");
System.out.print("Enter your age: ");
Scanner in = new Scanner(System.in);
int num = in.nextInt();
int age = num;
if( age == 12){
System.out.println("Hello Dan, I know you very well! ");
}
{
System.out.println("First question: ");
System.out.println("Do you exercise?(Yes/No) ");
// how do i proceed from here??
Use Scanner
and get next line, then check if that line is yes or no then handle respectively.
In the example below, I used a while loop to keep asking them to input yes or no in case they enter something different like "maybe".
For example:
Scanner in = new Scanner(System.in);
// Loop until they enter either yes or no.
while(true){
String line = in.nextLine();
// Use this to check if it is yes or no
if(line.equalsIgnoreCase("yes")){
// Process yes
break;
}else if(line.equalsIgnoreCase("no")){
// Process no
break;
}else{
// Tell them to enter yes or no since they entered something else.
}
}
Are you looking for something like this?
//import to use the Scanner
import java.util.Scanner;
public class Stack_Overflow_Example {
public static void main(String[] args) {
System.out.println("First question: ");
System.out.print("Do you exercise?(Yes/No) ");
Scanner in = new Scanner(System.in);
//get the user input and store it as a String
String exerciseQuestion = in.nextLine();
//check what the user said.
if(exerciseQuestion.equalsIgnoreCase("yes")){
System.out.println("Dan does exercise");
//do you code when he exercises
}
else{
System.out.println("Dan does not exercise");
//do your not exercise code here
}
System.out.println("Ask your next question so on....");
}//main
}//class
If you want to deal with answers other than yes/no
you can use this code:
import java.util.Scanner;
public class Stack_Overflow_Example {
public static void main(String[] args) {
System.out.println("First question: ");
System.out.print("Do you exercise?(Yes/No) ");
Scanner in = new Scanner(System.in);
String exerciseQuestion;
while (true){
//get the user input
exerciseQuestion = in.nextLine();
//check if user input is yes or no
if((exerciseQuestion.equalsIgnoreCase("yes")) ||
exerciseQuestion.equalsIgnoreCase("no"))
//if yes break and continue with your code
break;
else
//else loop back to get user input until answer is yes/no
System.out.println("Please answer with yes or no only");
}//while . i.e answer not yes or no
if(exerciseQuestion.equalsIgnoreCase("yes")){
System.out.println("Dan does exercise");
//do your code
}
else{
System.out.println("Dan does not exercise");
//do your not exercise code here
}//else
}//main
}//class
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