java - 将double转换为字符串(Converting double to string)

Question

I am not sure it is me or what but I am having a problem converting a double to string.

(我不确定它是我还是什么，但我在将double转换为字符串时遇到问题。)

here is my code:

(这是我的代码：)

double total = 44;
String total2 = Double.toString(total);

Am i doing something wrong or am i missing a step here.

(我做错了什么，或者我错过了一步。)

I get error NumberFormatException when trying to convert this.

(尝试转换它时，我收到错误NumberFormatException 。)

totalCost.setOnTouchListener(new OnTouchListener() {
  public boolean onTouch(View v, MotionEvent event) {
    try {
      double priceG = Double.parseDouble(priceGal.getText().toString());
      double valG = Double.parseDouble(volGal.toString());
      double total = priceG * valG;
      String tot = new Double(total).toString();
      totalCost.setText(tot);
    } catch(Exception e) {
      Log.e("text", e.toString());
    }

    return false;
  }         
});

I am trying to do this in an onTouchListener.

(我试图在onTouchListener中执行此操作。)

Ill post more code, basically when the user touches the edittext box i want the information to calculate a fill the edittext box.

(我发布更多代码，基本上当用户触摸edittext框时，我希望信息计算填充edittext框。)

  ask by Brandon Wilson translate from so

Answer 1

double total = 44;
String total2 = String.valueOf(total);

This will convert double to String

(这会将double转换为String)