How To Write Java Code

Generally, java class format seems below :
import package;
class classsname{

method1();
method2();
-
-
method-n;

}

more specific seems below :

import package;
class name{
objects declaration;

constructor(){

object setting;

}
methode main(){

call class();

}

}

here is the sample :

import javax.swing.*;
class sample extends JFrame{

sample(){

super("Sample");

show();

setSize(200,100);

setLocation(100,100);

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}

public static void main(String[] args){

new sample();
}

}