Question

public class Reverse {
    public static void main(String[] args) {
        char name[]="prakash".toCharArray();////initialisng array

        ////////swapping string order//////////////
        //////////i.e. reversing array of characters//////////

        for(int i=0;i<=(name.length)/2;i++)
        {
            int j=name.length-i;
            char temp;
            temp=name[i];
            name[i]=name[j];
            name[j]=temp;
        }
    }
}

I am getting the following error: java.lang.ArrayIndexOutOfBoundsException. What is wrong with the code?

Answer 1

Array indices are zero-based: the “first” element is at 0, the “last” element is at length-1.

Therefore, if you want j to go down from the last element, it should be

int j=name.length-1-i;