JAVA: parseInt problems

Question

I get the following error

Driver.java:237: cannot find symbol  
symbol  : method parseInt(char)
location: class java.lang.Integer
int bp = Integer.parseInt(b);

when using this code

char  p = switchchar.charAt(6);
    char  b = switchchar.charAt(7);
    int pp = Integer.parseInt(p);
    int bp = Integer.parseInt(b);

In the documentation it says the method should be there?

Answer 1

That's because the Integer#parseInt(String) method takes in a String and not a char. To get the numeric value from a char, use the Character#getNumericValue(char).

int pp = Character.getNumericValue(p);
int bp = Character.getNumericValue(b);

Answer 2

You have to turn the char into a String before parseInt will accept it.

Answer 3

The parseInt method receives a String as its parameter, not a char, so you have to do something like this:

String  p = "" + switchchar.charAt(6);
String  b = "" + switchchar.charAt(7);
int pp = Integer.parseInt(p);
int bp = Integer.parseInt(b);