I’m making a calculator and when trying to make the square root function, it outputs the number you put in, not the square root. Here’s the bit of code that applies to the square root function.

```
SquareRoot = (Button)findViewById(R.id.SquareRoot);
SquareRoot.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
x = TextBox.getText();
xconv = Double.parseDouble(x.toString());
Math.sqrt(xconv);
answer = Double.toString(xconv);
TextBox.setText(answer);
}});
```

Just to give some information on this, x is a CharSequence, xconv is x converted to double, and answer is a string value. Thanks.

Edit: I have got the following resolution from Scaler, but still unsure about it as I’m a beginner. Need someone’s insights into it.

```
SquareRoot = (Button)findViewById(R.id.SquareRoot);
SquareRoot.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
x = TextBox.getText();
xconv = Double.parseDouble(x.toString());
xconv = Math.sqrt(xconv);//======> you are not initalize the answer to a variable here
answer = Double.toString(xconv);
TextBox.setText(answer);
}});
```