How to Convert a String to a Double in Java?

Converting String to Double in Java

In Java, converting a String representing a numerical value to a double can be achieved through a straightforward method:

Question: How to Convert a String to Double

To convert a String to a double in Java, you can utilize the Double.parseDouble() method. This method accepts a String as an argument and returns a double primitive type.

Solution: Using Double.parseDouble()

String text = "12.34"; // example String
double value = Double.parseDouble(text);

In the given example, the String "12.34" is converted to a double value stored in the value variable.

Practical Application:

The example mentioned in the prompt demonstrates the application of Double.parseDouble() in a real-world scenario:

double total = Double.parseDouble(jlbTotal.getText());
double price = Double.parseDouble(jlbPrice.getText());

Here, the method is used to convert the text values obtained from two different JLabel components (assumed to contain numerical information) into double values, stored in the total and price variables respectively.

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