CODEWITHSUNDEEP
androidandroid-listviewandroid-edittextmultiplication
Viral_Weaponry
Viral_Weaponry

Reputation: 11

Android: how to multiply values from EditText?

Ok, first thing is that I am new in Android development, please do not shoot me for the question.

So, I am developing an app yhat needs to multiply from 3 EditTexts:

resultsEditText
amountEditText
taxEditText

They are set with the same name in the R.java. what I want is the following:

amountEditText * taxEditText = resultsEditText

I have no idea in how to implement this, I have searched the internet and this site, which I use as a reference for all my Android development needs, and all the code I found doesnt work at all. I dont know what else to do. Thanks in advance!

Upvotes: 1

Views: 11140

Answers (2)

Stephen
Stephen

Reputation: 10059

    Button btnCal,btnSub;
    EditText editLen,editWid,editFeet;
    int a,b,res;

        btnSub=(Button)findViewById(R.id.btnSub);
        btnCal=(Button)findViewById(R.id.btnCal);

        editLen=(EditText)findViewById(R.id.editLen);
        editWid=(EditText)findViewById(R.id.editWid);
        editFeet=(EditText)findViewById(R.id.editFeet);

        btnCal.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                a = Integer.parseInt(editLen.getText().toString());
                b = Integer.parseInt(editWid.getText().toString());

                res=a*b;
                editFeet.setText(String.valueOf(res));

            }
        });

Upvotes: 0

AKD
AKD

Reputation: 3966

You need to set EditText input type as number as well so user can input only numbers.

int a = Integer.parseInt(resultsEditText.getText().toString().toTrim());
int b = Integer.parseInt(amountEditText.getText().toString().toTrim());
int c = Integer.parseInt(taxEditText.getText().toString().toTrim());

    int result = a * b * c;

Upvotes: 2

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