Try/catch allowing exception through

[Suane Mane]

I have another topic about the full code this part is from but it started out with a different question and branched out. Thought it might not be accurate to keep posting there when I'm asking different questions.

I'm trying to catch the NumberFormatException and write my own message and allow the program to continue after it.

public void addtoList() {
        //error handling
        int valueEntered = Integer.parseInt(text1.getText());
        try {
            if (valueEntered < 0)
                System.out.println("Error: number entered is too low. Please enter a value between 0-9.");
            else if (valueEntered > 9)
                System.out.println("Error: number entered is too high. Please enter a value between 0-9.");
            else {
                NumbersList.add(valueEntered);
                System.out.println("Number added");
                System.out.println(NumbersList);
            }
        } catch (NumberFormatException e) {
            System.out.println("Only integers allowed.");
            JLabel rules = new JLabel("You added number " + valueEntered + "to the list.");
        }
    }

Output:
Exception in thread "AWT-EventQueue-0" java.lang.NumberFormatException: For input string: "2.45"

[Paul Clapham]

I just answered that question in your other thread.

[Suane Mane]

Seen. Wanted to update this topic with another try/catch problem of the same program.

public void search() {
        int valueEntered = Integer.parseInt(text1.getText());
        int count = 0;
        try {if (text1.getText().equals("")){
            System.out.println(NumbersList.size());}
        }catch (NumberFormatException e){
            System.out.println("There are " + NumbersList.size() + " values in the list".);
        }
        for (int i = 0; i < NumbersList.size(); i++) {
            if (NumbersList.get(i) == valueEntered)
                count += 1;
        }
        System.out.println("There is/are " + count + " occurrence(s) of the number " + valueEntered);
    }

The aim of this method is to show the number of occurrences of user entered number. If the text field is empty, it's supposed to show the number of values currently in the list (only testing on console for now. Once it is fully functional I will try to add the message in the window so it's visible to the user).
I'm pretty sure the code that is raising the exception is within the try block, yet the exception still goes through.

[Paul Clapham]

Suane Mane wrote:I'm pretty sure the code that is raising the exception is within the try block, yet the exception still goes through.

No, it isn't. Check my subsequent answer in the other thread.