Java thinks I want to convert char to String using Integer.parseInt()

Question

I get the error message error: incompatible types: char cannot be converted to String return Integer.parseInt(cases2[0]);

but my code is:

public static int standingOvation(String cases){

    char[] cases2 = cases.toCharArray();
    return Integer.parseInt(cases2[0]);
}

Why am I getting the error if i'm clearly trying to convert cases (which is passed in as "11111") to an integer?

Crazyjavahacking · Accepted Answer · 2015-04-11 22:12:27Z

3

The construct cases2[0] will pick the first character out of the cases2 string.

Integer.parseInt() requires a String argument, not a char.

answered Apr 11, 2015 at 22:12

Crazyjavahacking

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2 Comments

Rafa Over a year ago

got it. so I guess I should use Character.getNumericValue(cases2[0]) instead?

Bubletan Over a year ago

@ralphie9224 Yes, you should.

Paul Boddington · Accepted Answer · 2015-04-11 22:11:55Z

2

Try

return Integer.parseInt("" + cases2[0]);

By adding to the empty string "" you convert to a string, which is the right type for Integer.parseInt.

answered Apr 11, 2015 at 22:11

Paul Boddington

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2 Comments

Paul Boddington Over a year ago

@ralphie9224 You can also do String.valueOf(cases2[0]) to convert a char to a String, but the "" + trick is useful to know as it converts anything to a String. It is a bit hacky though.

Bubletan Over a year ago

@pbabcdefp String.valueOf also converts anything to String.

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