Question:

How to check if a number is divisible by 8 using Java

Summary

Here we have defined a class Solution and its DivisibleByEight method, which returns an integer when given a string s as input.

Solution

//User function Template for Java

class Solution{

int DivisibleByEight(String s){

//code here

if(s.length()>3)

{

String temp=s.substring(s.length()-3);

int ans=Integer.parseInt(temp);

if(ans%8==0)

{

return 1;

}

else{

return -1;

}

else{

int a=Integer.parseInt(s);

if(a%8==0)

{

return 1;

}

else{

return -1;

}

Explanation

The DivisibleByEight method determines whether the supplied string, s, represents a number that can be divided by eight.
It uses the substring method to extract the final three characters from the string and converts them to an integer if the length of the string s is greater than 3.
Next, it determines if this number is divisible by eight. The method returns 1 if it is; -1 if it isn't.
It immediately converts the string to an integer and runs the same divisibility check if the length of the string s is not greater than 3.

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