/Java/Find Numbers with Even Number of Digits

Find Numbers with Even Number of Digits

// https://leetcode.com/problems/find-numbers-with-even-number-of-digits/
// Find Numbers with Even Number of Digits

class Solution {
    public int findNumbers(int[] nums) {
        int evenDigits = 0;
        for (int num : nums) {
            if (isEvenDigit(num)) evenDigits++;
        }
        return evenDigits;
    }
/*	
	// counting the number of digits (Method 1)
    int digitcount2(int number) {

        if (number < 0) number *= -1;
        if (number == 0) return 1;
        int count = 0;
        while (number > 0) {
            number /= 10;
            count++;
        }
        return count;
    }
*/  
	// counting the number of digits (Method 2)
  	int digitcount(int number){
        return (int) (Math.log10(number)) + 1;
    }
  
    boolean isEvenDigit(int number){
        return digitcount(number) % 2 == 0;
    }
}

Find Numbers with Even Number of Digits

// https://leetcode.com/problems/find-numbers-with-even-number-of-digits/
// Find Numbers with Even Number of Digits

class Solution {
    public int findNumbers(int[] nums) {
        int count=0;
        for(int i =0 ; i< nums.length; i++){
            if((nums[i]>9 && nums[i]<100) || (nums[i]>999 && nums[i]<10000) || nums[i]==100000){
                count++;
            }
        }
        return count;
    }
}

Similar codes

15 votes174 views6 answers
Factorial
Java
1 vote154 views1 answer
Java character for end of file
Java
0 vote123 views1 answer
Java color rgb
Java
0 vote172 views2 answers
App dashboard cardview click effect and animation android studio
Java
0 vote227 views1 answer
Changing background color of selected item in recyclerview
Java
7 votes202 views2 answers
How to return the first character in an array from a method java
Java
0 vote129 views1 answer
Remove selected text from string value android java
Java
10 votes168 views2 answers
Java substring
Java
0 vote164 views1 answer
Android studio how to move a picture canvas
Java
0 vote178 views1 answer
Spring boot intellij auto reload
Java