Check out example codes for "string to double java". It will help you in understanding the concepts better.

Code Example 1

public class stringtodouble {
	public static void main(String args) {
    	String string = "1.23";
      	double decimal = Double.parseDouble(string);
    }
}

Code Example 2

Double d = Double.valueOf(String str);

Code Example 3

double d = Double.parseDouble(aString);

Code Example 4

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

Code Example 5

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

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