Question

How to check if string is a positive integer in Java

Answer 1

public class MyClass {
    public static void main(String args[]) {
        String str = "8";

        try {
            int n = Integer.parseInt(str);
            
            System.out.println(n >= 0);
        } catch (NumberFormatException e) {
            System.out.println("Not an integer");
        }
    }
}



/*
run:

true

*/

 

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