Java - convertir string en double

String numString="1234";

System.out.println("String: "+numString);

double numDouble=Double.parseDouble(numString);

System.out.println("double: "+numDouble);

float numFloat=Float.parseFloat(numString);

System.out.println("Float: "+numFloat);

long numLong=Long.parseLong(numString);

System.out.println("long: "+numLong);

int numInt=Integer.parseInt(numString);

System.out.println("int: "+numInt);

short numShort=Short.parseShort(numString);

System.out.println("short: "+numShort);

byte numByte=Byte.parseByte(numString);

System.out.println("byte: "+numByte);

public class ConvertStringToDouble {

  public static void main(String[] args) {

    String aString = "78";

    double aDouble = Double.parseDouble(aString);

    System.out.println(aDouble);

  }

}