方法名太多,使用方法的重载(overload)来解决

Posted 2020-12-31 koma-vv

package chapter04;

/*
问题：方法名太多了，不容易记忆，有时会出错
使用方法的重载(overload)来解决
*/
public class C09_Method {
public static void main(String[] args) {
int a = print();
// 如果不强转默认是int类型
Short s = (short) print(3);

double c = print(5);
String d = print("11");
System.out.println(a);
System.out.println(s);
System.out.println(c);
System.out.println(d);
}

public static int print() {
return 20;

}

public static short print(short a) {
return 1;
}

public static double print(double a) {
return 1.0;
}

public static String print(String name) {
return "name";
}
}

-------------------打印结果-------------------

20
1
1.0
name