1 public class Car { 2 3 String name; 4 5 int age; 6 7 int goals=14; 8 9 //行为.(方法)10 //void,没有返回值。如果有返回值,要写明返回值的数据类型。如int jiayou()11 void jinqiu(int goals1) //括号内写参数12 {13 goals += goals1; //运算式14 System.out.println("本次进球数:"+goals1+"\n"+"总进球数:"+goals);15 } }
1 public class testcar { 2 3 public static void main(String[] args) { 4 // TODO 自动生成的方法存根 5 6 Car c罗 = new Car(); 7 c罗.age=31; 8 c罗.jinqiu(30); 9 System.out.println("c罗的年龄是:"+c罗.age);10 System.out.println("目前c罗进球数是:"+c罗.goals);11 12 }13 14 }