使用toString()方法打印
问题说明
class Box
{
// Instance Variables
double length ,ipsos ;
double width ,mikos ;
double height ,platos;
// Constructors
public Box ( double side )
{
width = side ;
height = side ;
length = side ;
}
public Box ( double x , double y , double z)
{
platos = y ;
ipsos = z;
mikos = x ;
}
// Methods
double calculate(double praksi)
{
return 2 * ( width * height
width * length
height * length ) ;
}
double volume(double emvadon)
{
return platos*ipsos*mikos ;
}
}
在上面的代码中，如何制作toString()方法，所以我可以返回volume的值并计算??? 我是Java的新手，所以请尽可能简单
In the upper code, how can I make a toString() method, so I can return the values of volume and calculate ??? Im new with java so be as simple as you can please
正确答案
将此方法添加到您的类中(以覆盖toString()方法):
Add this method to your class (to override the toString() method):
@Override
public String toString() {
return "Volume: " volume(1) "\n Calculate: " calculate(1);
}
注意:@Override是可选的:它只是通信，如果错拼了覆盖的方法(toString())，请确保收到错误.
Note: @Override is optional: it's just communication and making sure you receive an error if you misspell the overridden method (toString()).
此外，为什么不使用volume和calculate的参数?这就是为什么我将诸如1之类的随机数传递给他们的原因，因为它们显然无关紧要.
Also, why do you have parameters for volume and calculate if you don't use them? That's why I passed them a random number like 1 because it apparently doesn't matter what they are.
这篇好文章是转载于：学新通技术网
