Question

How to check if a number have even number of digits in Java

Answer 1

public class MyClass {
    public static void main(String args[]) {
        int num = 187395;
  
        if ((int)(Math.log10(num) + 1) % 2 == 0)
            System.out.println("Even number of digits");
        else
            System.out.println("Not even number of digits");
    }
}



/*
run:
  
Even number of digits
  
*/

 

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