Java中實例方法和類方法的區別舉例

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import java.util.ArrayList;
import java.util.Iterator;
class myclass{
    int num=233;
    static int num_static=666;
    
    public void method() {
        System.out.println(num);
        System.out.println(num_static);
        System.out.println("這是一個成員方法");
    }
    public static void method_static() {
        //System.out.println(num);
        System.out.println(num_static);
        System.out.println("這是一個靜態方法");
    }
}
public class Main{
    public static void main(String[] args) {
        myclass obj = new myclass();
        obj.method();
        obj.method_static();
        myclass.method_static();
        System.out.println(" ");
    }
}