he operator / is undefined for the argument type(s) String, int

Code :

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	import java.io.*;
 
public class FormatTime
{
 
public static void main(String[] args) 
{
 
//this will fetch our input values
BufferedReader usrInput = new BufferedReader( new InputStreamReader( System.in) );
 
System.out.println("Enter a number in seconds to format: ");
String secs = usrInput.readLine();
 
int hours = (secs / 3600);
int remainder = (secs % 3600);
int minutes = (remainder / 60);
int seconds = (remainder % 60); 
 
String Hour = (hours < 10 ? "0" : "") + hours;
String Min = (minutes < 10 ? "0" : "") + minutes;
String Sec = (seconds < 10 ? "0" : "") + seconds ;
 
System.out.println(Hour +":"+ Min+":"+Sec);
}
 
}

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Could someone help me out with this error. I have googled but I just dont get it. I am new, very new. Started a online class 3 weeks ago and I have my first program due. My book just showed up today and I am way behind. this is the error I am getting.

Code :

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"The operator / is undefined for the argument type(s) String, int"

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The problem is here:

String secs = usrInput.readLine();

int hours = (secs / 3600);
int remainder = (secs % 3600);

You are trying to divide secs by 3600, but secs is a String and 3600 is an int.
So you are trying to do: String / int, that's why you're receiving that error.

To fix this, make secs and Integer like this:
String secString = usrInput.readLine();
int secs = Integer.parseInt(secString);

or achieve the same result by this:

int secs = Integer.parseInt(userInput.readLine());

Both statements will do the same.

or this:

Code :

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int secs = new Scanner(System.in).nextInt();
int hours = secs/3600;
//...

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