Java Main - Calling another method

I have the following code below:

开发者_开发百科public static void main(String args[])
{
start();
}

i get this error: Non-static method start() cannot be referenced from a static context.

How can i go about doing this?

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Create an instance of your class and call the start method of that instance. If your class is named Foo then use the following code in your main method:

    Foo f = new Foo();
    f.start();

Alternatively, make method start static, by declaring it as static.

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Hope this can help you..

public class testProgarm {

    private static void start() {
        System.out.println("Test");
    }

    public static void main(String[] args) {
        start();
    }

}

However, it is not a good practice to make a method static. You should instantiate a object and call a object's method instead. If your object does't have a state, or you need to implement a helper method, static is the way to go.

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One approach would be to create an instance of another class within the main method, for example newClass and call the start() method within it.

newClass class = new newClass();
class.start();

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For non-static (& instance) methods, you may need an instance of class to access it.

Try this:

public class TestClass {

    public static void main(String[] args) {
        start();

       TestClass tc = new TestClass();
       tc.start1()
    }

    // Static method
    private static void start() {
        System.out.println("start");
    }

    // Non-static method
    private void start1() {
        System.out.println("start1");
    }

}