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Error: Could not find or load main class

When I run my program this says:

Error: Could not find or load main class Hello world

Every setting I did several times but I get the same result. Win 8.1 64 bit Path settings ok eclipse jre setting ok 

public class newproject1
{
    public static void main(String[] args) {
        System.out.println("Hello World! ");
    }
}

Error: Could not find or load main class newproject1

Solution

  • I would guess that your Hello world class does not have a main method defined. The format is: 

    public static void main(String[] args)
{
    //in here you put what you want the program to do
    System.out.println("Hello World");
}