java入门第二季--第1章 类和对象--java中的成员变量和局部变量

什么是成员变量和局部变量成员变量和局部变量的区别代码/javaDemo1/src/com/imooc/Telphone.javapackage com.imooc;public class Telphone { //属性（有什么） float screen; float cpu; float mem; int var; //方法，干什么 void call(){ int var = 40; System.out.println(“var” + var); System.out.println(“打电话”); } void sendMessage() { System.out.println(“var” + var); System.out.println(“screen:"+ screen +“cpu:"+ cpu +“发短信”); }}/javaDemo1/src/com/imooc/InitailTelphone.javapackage com.imooc;public class InitailTelphone { public static void main(String[] args) { // TODO Auto-generated method stub Telphone phone = new Telphone();// phone.sendMessage(); phone.cpu = 5.0f; phone.screen = 3.0f; phone.call(); phone.sendMessage(); }}