transformer un string en double java

String s = "10.1";
Double d = Double.parseDouble(s);

double d = Double.parseDouble(aString);

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

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

String number = "123,321";
double value = Double.parseDouble( number.replace(",",".") );

String doubleAsString = "23.23";
BigDecimal price = new BigDecimal(doubleAsString);
BigDecimal total = price.plus(anotherPrice);