Thread: I have to send this tomorrow and i have now idea what is wrong

Im very new to java so im sorry if this hurts your eyes.
So im supposed to make a clock that for 3 minutes after starting the program it prints the time starting from 16:28:58 but i get this message when i run it
Exception in thread "main" java.lang.Error: Unresolved compilation problem:

import java.util.concurrent.TimeUnit;
 
public class clockApp {
 
 
		//Data
 
		private int hours;
		private int minutes;
		private int seconds;
 
 
		// Methods
 
		void setHour(int h) {
			hours=h;
 
		}
 
		void setMin(int m) {
			minutes=m;
 
		}
 
		void setSec(int s) {
			seconds=s;
 
		}
		void tick() {
			if (hours==23 && minutes==59 && seconds==59){
				hours=0;
				minutes=0;
				seconds=0;
			}
			if (minutes==59 && seconds==59){
				hours=hours+1;
				minutes=0;
				seconds=0;
			}
			if (seconds==59){
				minutes=minutes+1;
				seconds=0;
			}
			else{
				seconds=seconds+1;
			}
 
		}
		public String toString() {
			String a=Integer.toString(hours);
			String b=Integer.toString(minutes);
			String c=Integer.toString(seconds);
			string z=a+":"+b+":"+c;
			return z;
 
		} 
 
 
 
 
 
		public static void main (String args[]) throws Exception{
 
			clockApp idk=new clockApp();
			idk.setHour(16);
			idk.setMin(28);
			idk.setSec(58);
			for (int i=0;i<181;i++){
				System.out.println(idk.toString());
				idk.tick();
				TimeUnit.SECONDS.sleep(1);
 
 
 
 
 
 
 
 
			}
			}
 
 
}

Im sorry i can't find how to upload the image here directly so i will just send you this imgur link.
https://imgur.com/vX2GtS2

My apologies.
This is the text i get when i run it.

PS C:\Users\stath> & 'C:\Program Files\Java\jdk-17.0.2\bin\java.exe' '--enable-preview' '-XX:+ShowCodeDetailsInExceptionMessages' '-cp' 'C:\Users\stath\AppData\Local\Temp\vscodesws_6ff27 \jdt_ws\jdt.ls-java-project\bin' 'clockApp'
Exception in thread "main" java.lang.Error: Unresolved compilation problem:

at clockApp.main(test 3.java:68)
PS C:\Users\stath>

its this line.
public static void main (String args[]) throws Exception{

I tried using the Javac command but it doesn't seem to find my file, I even tried making a new one with notepad and it still didn't recognize it.
This is the message i get.

C:\Users\stath\Desktop>javac ClockTest.java
error: file not found: ClockTest.java
Usage: javac <options> <source files>
use --help for a list of possible options

Again i'm very new to this i'm sorry for the inconvenience.

I used cd desktop because my file is in the Desktop folder. But it still didn't recognize it

I did it and i ran it with javac this is the error i get.

ClockTest.java.:9: error: class clockApp is public, should be declared in a file named clockApp.java
public class clockApp {
^
ClockTest.java.:59: error: cannot find symbol
string z=a+":"+b+":"+c;
^
symbol: class string
location: class clockApp
2 errors

--- Update ---

I fixed my program!!! Thank you for helping me.