Why is my program ignoring else statement

Question

import javax.swing.JOptionPane;
 
public class New {
    public static void main (String[] args) {

        String name = JOptionPane.showInputDialog("Enter your name... ");
        JOptionPane.showMessageDialog(null, "Hi, "+name);

        int age = Integer.parseInt(JOptionPane.showInputDialog("Enter your age... "));

        if(age>=18) { JOptionPane.showMessageDialog(null, "Welcome!");}
        else { JOptionPane.showMessageDialog(null, "You are not an adult!");
        System.exit(0);}

        String day = JOptionPane.showInputDialog("What's the day? ");
        if(day == "Monday") { JOptionPane.showMessageDialog(null, "Welcome back to school!");}
        else {JOptionPane.showMessageDialog(null, "Come back later!");}

    }

}

It always gives a "Come back later" message and totally ignoring the "if" -I'm a very beginner, this code is from a tutorial on youtube, tried to edit and I faced this problem-

In java you cannot compare two strings with `==` you should use `str.equals()` to check for the equality. The condition `day == "Monday"` always returns true. hence, your program is not going to the else statement. — iwrestledthebeartwice, Aug 14 '21 at 07:16

score 1 · Answer 1 · answered Aug 14 '21 at 07:17

1

The == operator doesn't check whether the values are equal in a String, it does the reference comparison (address comparison)

use:

if(day.equals("Monday"))

answered Aug 14 '21 at 07:17

devReddit

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score 1 · Answer 2 · answered Aug 14 '21 at 07:17

1

This is the classic mistake of trying to compare Strings in java with ==. You need to use .equals() so do if(day.equals("Monday"))

https://www.javatpoint.com/string-comparison-in-java

answered Aug 14 '21 at 07:17

BitNinja

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Why is my program ignoring else statement

2 Answers2