求教，找不到符号 - 编程论坛

#2

我叫小黑2015-05-27 18:17

public class Vehicle{
private double load;
private double maxload;
public  Vehicle()
{
  load = 0;
  maxload = 0;
}
public  Vehicle( double max_Load  ,double load )
{
  this.maxLoad =  maxLoad;
  this.load = load ;
}
public double getLoad()
{
return  load;
}
public double getMaxLoad()
{
  return maxload;
}
}
这样试试看

#3

林月儿2015-05-27 18:40

public class Vehicle{
private double load;
private double maxload;
public  Vehicle()
{
  load = 0;
  maxload = 0;
}
public  Vehicle( double max_Load  ,double load )
{
  this.maxLoad =  max_Load;             //这里可以不加this直接maxLoad=max_Load;
  this.load = load ;
}
public double getLoad()
{
return  load;
}
public double getMaxLoad()
{
  return maxload;
}
}
/////////////////////////也可以。。。。
public class Vehicle{
private double load;
private double maxload;
public  Vehicle()
{
  load = 0;
  maxload = 0;
}
public  Vehicle( double maxLoad  ,double load )
{
  this.maxLoad =  maxLoad;
  this.load = load ;
}
public double getLoad()
{
return  load;
}
public double getMaxLoad()
{
  return maxload;
}
}

#4

Ku4lyn2015-05-27 22:34

回复 2楼我叫小黑

那为什么会出现我那个问题呢？

#5

Ku4lyn2015-05-27 22:35

回复 2楼我叫小黑

为什么会出现我那个问题呢？

#6

秦时的明月夜2015-05-28 09:02

this.调用的是成员变量和方法，this.max_Load，没有max_Load这个成员变量，那只是形参,maxLoad是你vehicle的属性即成员变量，你应该是改成this.maxload

程序代码：

public class Vehicle{
private double load;
private double maxload;
public  Vehicle()
{
  load = 0;
  maxload = 0;
}
public  Vehicle( double max_Load  ,double load )
{
  this.maxload =  max_Load;
  this.load = load ;
}
public double getLoad()
{
return  load;
}
public double getMaxLoad()
{
  return maxload;
}
}

#7

逆水寒刘2015-05-28 16:48

一个小错误，楼上已给出，楼主多加了个下划线

以下是引用Ku4lyn在2015-5-27 18:09:04的发言：

public class Vehicle{
private double load;
private double maxload;
public  Vehicle()
{
  load = 0;
  maxload = 0;
}
public  Vehicle( double max_Load  ,double load )
{
  this.max_Load =  max_Load;
  this.load = load ;
}
public double getLoad()
{
return  load;
}
public double getMaxLoad()
{
  return maxload;
}
}
---------- javac ----------
Vehicle.java:13: 错误: 找不到符号
  this.max_Load =  max_Load;
      ^
  符号: 变量 max_Load
1 个错误

输出完成 (耗时 1 秒) - 正常终止