Android Development for Beginners : Practice Set 2 Currency Conversion Example

MainActivity.java

        int dollars = 40;
        int dollarsToYen = 119;
        int yen = dollarsToYen * dollars;
        display(yen);

Program is correct, displays 4760, it is the result of 119*40

4760

true

Correct. The result is 4760

Yes , it works fine

Please, I don't seems to understand what line of code is to be written, because, all I have tried isn't going through

40*119 = 4760

The Result Is

Perfect code

correct convert
showing value of 4760

correct
int dollars = 40
int dollarsToYen = 119;
int yen = dollarsToYen * dollars;.............................40*119=4760
display(yen);........................=4760

in the display method you have to have display(int + i)

and then .setText("" + i);

Could you please share the working xml and Main activity codes showing how you tried.
Thanks

code is correct.
The output is 4760

int dollars = 40;

    int dollarsToYen = 119;

    int yen = dollarsToYen * dollars;

    display(yen);

40 x 119 = 4760

• Correct codes

int dollars = 40;
int dollarsToYen = 119;
int yen = dollarsToYen * dollars;
display(yen);

// After this code, you have to add
public void display(int i) {
TextView t = (TextView) findViewById(R.id.display_text_view);
t.setText("" + i);
}

The output is 4760

4760

int dollars = 40;
int dollarsToYen = 119;
int yen = dollarsToYen * dollars;
display(yen);
// After this code, you have to add
public void display(int i) {
TextView t = (TextView) findViewById(R.id.display_text_view);
t.setText("" + i);
}
whay i (int i)

correct :4760

4760

4760

Hi @jerylee.
I tried to replicate what you did with your Layout, how do you get the .java to work with the layout?
cause when I changed the references to match the new ids in activity_main.xml, the application crashed, but without errors in Android Studio.
If could clarify that, I'll be grateful.

this code also works fine:

    int dollars = 40;
    int dollarsToYen = 119;
    display (dollarsToYen * dollars);

Hii
I write the code correctly but i am getting the error in display
what should i do ?

@shaan0708 one of your closing braces are missing, check them!

Kindly delete and do not post the answers to Udacity quizzes on these pages. It is not helpful to those who come here to get the code to see the answers before they have tried to answer the quiz for themselves.

The answer is provided on the next page in Udacity anyway - it is of no help to see it here. There is a Udacity forum to discuss the quiz if you need help.

I realize these are old posts but people are still doing the Udacity courses. The forum mods should remove the comments giving answers.