learning-java-2825378-03_07b (Code gives incorrect answer even when I type Jupiter) Help

[tnbythewood]

import java.util.Scanner;

public class Main {

public static void main(String args[]) {
    String question = "What is the largest planet in the solar system?";
    String choiceOne = "Earth";
    String choiceTwo = "Jupiter";
    String choiceThree = "Mars";

    String correctAnswer;
    correctAnswer = choiceTwo;

    // Write a print statement asking the question
    {System.out.println("What is the largest planet in the solar system?");}
    // Write a print statement giving the answer choices
    {System.out.println("Choose one of the following:" + " " + "Earth," + " " + "Jupiter," + " " + "Mars");}
    // Have the user input an answer
        Scanner scanner = new Scanner(System.in);
    // Retrieve the user's input
    String input = scanner.next();
    // If the user's input matches the correctAnswer...
    if(choiceTwo.equals(input.toLowerCase()))
    // then the user is correct and we want to print out a congrats message to the user.
    {System.out.println("Congrats! You are correct!");}
    // If the user's input does not match the correctAnswer...
    else {System.out.println("Incorrect, the correct answer is" + " " + correctAnswer);}
    // then the user is incorrect and we want to print out a message saying that the user is incorrect as well as what the correct choice was.

}

}

[leonjura]

I would shorten the code, but the main issue here is that you used .toLowerCase() on input but choiceTwo points to "Jupiter" not "jupiter".

[CHANDRA-CJ]

import java.util.Scanner;
class Whileloop {
public static void main(String arg[]){
Scanner scanner = new Scanner(System.in);
String question =" what is cat? ";
String optionone =" animal ";
String optiontwo =" bird ";
String optionthree =" fruit ";

    String correctanswer = optionone;

    System.out.println(question);
    System.out.println(" your options are: " + optionone + ", " + optiontwo + " ," + optionthree + " ");
    String input = scanner.next();
    if (correctanswer.equals(input)){
        System.out.println("your Answer is correct");}
    else{
        System.out.println("Answer is not correct" + correctanswer);
    }


}

}

//having same issue. not reading the if statement

[CHANDRA-CJ]

//okay the .equals is case sensitive. problem solved

import java.util.Scanner;
class Whileloop {
public static void main(String arg[]){
Scanner scanner = new Scanner(System.in);
String question =" what is cat? ";
String optionone ="animal";
String optiontwo ="bird";
String optionthree ="fruit";

String correctanswer = optionone;

System.out.println(question);
System.out.println(" your options are: " + optionone + ", " + optiontwo + " ," + optionthree + " ");
String input = scanner.next();
if (correctanswer.equals(input)){
    System.out.println("your Answer is correct");}
else{
    System.out.println("Answer is not correct" + correctanswer);
}

}
}

[bastianhilton]

For me i removed the option .toLowerCase() and moved the scanner to right under the main (not sure if the scanner part helped or not)

import java.util.Scanner;

public class HelloWorld {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
String question = "What is my name?";
String choiceOne = "Sebastian";
String choiceTwo = "Ceres";
String choiceThree = "Ambrose";

    System.out.println(question);

    String correctAnswer = choiceOne;
    
    System.out.println("Choose one of the following: " + choiceOne + ", " + choiceTwo + ", " + choiceThree + ".");

    String input = scanner.next();
    
    if (correctAnswer.equals(input)){
        System.out.println("Nice! You know me");
    } else {
        System.out.println("Sorry, You don't know me at all. My real name is " + correctAnswer);
    }
}

}

[Rishabh-Ethicalhacker]

Here the main problem is you converted your input in lower case and the value stored in String first letter is in upper case so to avoid this type of problem we can use here equalsIgnoreCase() function

import java.util.Scanner;

public class Main {

public static void main(String args[]) {
String question = "What is the largest planet in the solar system?";
String choiceOne = "Earth";
String choiceTwo = "Jupiter";
String choiceThree = "Mars";

String correctAnswer;
correctAnswer = choiceTwo;

// Write a print statement asking the question
{System.out.println("What is the largest planet in the solar system?");}
// Write a print statement giving the answer choices
{System.out.println("Choose one of the following:" + " " + "Earth," + " " + "Jupiter," + " " + "Mars");}
// Have the user input an answer
    Scanner scanner = new Scanner(System.in);
// Retrieve the user's input
String input = scanner.next();
// If the user's input matches the correctAnswer...
if(choiceTwo.equalsIgnoreCase(input))
// then the user is correct and we want to print out a congrats message to the user.
{System.out.println("Congrats! You are correct!");}
// If the user's input does not match the correctAnswer...
else {System.out.println("Incorrect, the correct answer is" + " " + correctAnswer);}
// then the user is incorrect and we want to print out a message saying that the user is incorrect as well as what the correct choice was.

}
}

[chetan7252]

Here, you need not use toLowerCase() method and instead of using equals() method, use equalsIgnoreCase() which checks if two strings are equal or not by ignoring its lower or upper case.

import java.util.Scanner;

public class Main {

public static void main(String args[]) {
String question = "What is the largest planet in the solar system?";
String choiceOne = "Earth";
String choiceTwo = "Jupiter";
String choiceThree = "Mars";

String correctAnswer;
correctAnswer = choiceTwo;

// Write a print statement asking the question
{System.out.println("What is the largest planet in the solar system?");}
// Write a print statement giving the answer choices
{System.out.println("Choose one of the following:" + " " + "Earth," + " " + "Jupiter," + " " + "Mars");}
// Have the user input an answer
    Scanner scanner = new Scanner(System.in);
// Retrieve the user's input
String input = scanner.next();
// If the user's input matches the correctAnswer...
if(choiceTwo.equalsIgnoreCase(input))
// then the user is correct and we want to print out a congrats message to the user.
{System.out.println("Congrats! You are correct!");}
// If the user's input does not match the correctAnswer...
else {System.out.println("Incorrect, the correct answer is" + " " + correctAnswer);}
// then the user is incorrect and we want to print out a message saying that the user is incorrect as well as what the correct choice was.

}

}