converting string to doulbe hava code example

Example 1: string to double java exception

try {
  a = Double.parseDouble(b);
} catch (NumberFormatException e) {
  //the parseDouble failed and you need to handle it here
}

Example 2: transformer un string en double java

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