第七色在线视频,2021少妇久久久久久久久久,亚洲欧洲精品成人久久av18,亚洲国产精品特色大片观看完整版,孙宇晨将参加特朗普的晚宴

public class Student { public void study() { System.out.println("同學(xué)真好學(xué)!"); } public void study(String name) { System.out.println(name + "同學(xué)真好學(xué)!"); } public void study(String name, int age) { System.out.println(name + "同學(xué)真好學(xué)!" + "他今年" + age + "歲了"); } public static void main(String[] args) { // 實例化學(xué)生對象 Student student = new Student(); // 調(diào)用無參數(shù)方法 student.study(); // 調(diào)用單參數(shù)方法 student.study("Colorful"); // 調(diào)用雙參數(shù)方法 student.study("小慕", 20); } }