Question

what is wrong with my code. what should I do with this kind of error

61 QueueDemo java - Files - RaProjects/one- A Queue Demoava Queueinterface Java inport java.util.LinkedList; import java.util.Queue public class QueueDemo public static void main(String[] args) { 10 11 12 13 Queue String myQueue new LinkedlistString();//Create a reference to a queue Interface myqueue.add("A");//Call the enqueue method on myQueue passing the string value of "A" myQueue.add("B");//call the enqueue method on nyQueue passing the String value of "3" myQueue.add("C");//Call the enqueue method on myQueue passing the String value of "C" myQueue.add("D");//Call the enqueue method on myQueue passing the String value of "D String front;//create a variable called front while(myqueue. IsEmpty()!=true)//Create a loop that continues as long as the queue is not empty front-nyqueue.poll();//the value that is returned from a call to dequeue System.out.println(front);//print value in front > 15 10 17 18 19 21 Queur Demo malno Main /library/Java/JavavirtualMachines/jdk-14.je/Contents/Home/bin/javajavaagent1/Applications/Intel IDEA CE.app/Contents/Lib/ideart.jar-646131/Applications/Intelli Error: Could not find or load nain class com.company.Main Caused by: java.lang.ClassNotFoundExceptiont com.company. Main Process finished with exit code 1

Answer 1

the error Could not load main class shows because the class which have main function i.e main class should have same name as the file (prigramm file)

• for your code it seems your have diffrent file name QueueDemo.java. so make class name same as QueueDemo.

Second error mostly occure when your java virtual machine tries to found the class or method in class path location but its not there for correccting it you should add the desired class file path in classpath so your JVM can import or found the class for use.

• best solution is to make the new methods in same directory in which the file itself is present will mostly avoid this error.
• you can also check the class path by
• java -classpath .; yourjar.jar yourmainclassname : for windows
• for adding your file path to class path use command
• java -cp "c:/location/file" yourmainname.java