Doubt

[Roopa Bhuvaneswari]

HI ,
can anyone help me regarding this java program For example, s="12 some text 3 7", result: 22 (12+3+7=22)

i want logic for this program please help me...

[Rajkamal Pillai]

Split the entire String into a char array. Convert each character into its numeric equivalent and add up all the numbers.

[Roopa Bhuvaneswari]

Convert each character into its numeric equivalent ..it is not clear can you please explain me clearly

[Campbell Ritchie]

Roopa Bhuvaneswari wrote: . . . i want logic for this program please help me...

You will have to work out the logic for your programs yourself, I am afraid. Write it down on paper, then you can see what you are doing. And are yoiu sure that

"12 some text 3 7"

. . . actually gives 22 by any straightforward means?

[Matthew Brown]

You can't (easily) do it character by character, because of multi-digit numbers (e.g. 12).

Once thing you could do is use String.split() to split on non-numeric characters. That will give you an array of strings that can easily be converted to a number. That would work as long as all the values you're looking for are non-negative integers with simple formatting. If you need to cope with decimals, or with negative numbers, then the problem gets quite a bit more complicated.

[Rob Spoor]

You need to convert the Strings "12", "3" and "7" into numbers (ints) 12, 3 and 7. java.lang.Integer has a nice static method for this; check out the class' Javadoc page. Be aware that you should catch the exception that will be thrown when you pass "some" or "text" to this method.