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从静态和非静态方法访问类字段
public class Main { public static void main(String[] args) {//N o w J a v a . c o m - 时 代 Java MyClass mt = new MyClass(); System.out.println("Invoking instance method..."); mt.printMN(); System.out.println("Invoking class method on class name..."); MyClass.printM(); System.out.println("Invoking class method on an instance..."); // Invoke the class method using the instance reference mt.printM(); } } class MyClass { static int m = 100; // A static variable int n = 200; // An instance variable static void printM() { System.out.println("printM() - m = " + m); /** from * nowjava.com - 时 代 Java **/ } void printMN() {