Question

How to implement a method to get char array length in Java

Answer 1

public class MyClass {
    static int length(final char[] arr) {
        int i = 0; 
        char ch;
        while (true) {
            try {
                ch = arr[i++];
            } catch (ArrayIndexOutOfBoundsException ex) {
                i--;
                break;
            }
        }
        return i;
    }
    public static void main(String args[]) {
       try {
            char[] arr = {'x','v','b','a','q','o','p'};
            int length = length(arr);
            
            System.out.println(length);
        } catch(Exception e) {
            e.printStackTrace();
        }
    }
}




/*
run:

7

*/

 

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