String to Integer conversion

I want to convert a string to integer. I wrote following code but it throws exception.

Code:

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String str = "22";
int a = (int)str;

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Exception:

Code:

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Cannot cast from String to int

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Can anyone indicate the problem area?

-PEACE

You can use the following lines of code

String a = "123"
int number = Integer.parseInt(a);

Perfect. It is now ok. Thanks for your help.

- PEACE