Question

java语言中关于枚举的问题，求改错，最好能告诉我原因，谢谢

package demo;
public class Person5
{
public static void main(String[] args){
color a = new color();//创建color
a = color.getlnstance(1);
System.out.println(a.getName());
}

}

class color
{
private String name;//成员变量
public static final color RED = new color("红色");//静态常量
public static final color GREEN = new color("绿色");
public static final color BLUE = new color("蓝色");

public String getName() { return name; }
public void setName(String name) { this.name = name; }
private color(String name) { setName(name); }//构造方法

public static color getlnstance(int i)
{
if (i == 0)
{
return RED;
}
if (i == 1)
{
return GREEN;
}
if (i == 2)
{
return BLUE;
}

return null;
}
}

Answer 1

为啥不直接写成枚举呢。
public enum ColorEnum {
RED("RED"),
GREEN("GREEN"),
BLUE("BLUE");

private final String name;

ColorEnum(String name){
this.name = name;
}

public String getName(){
return this.name;
}

public static void main(String[] args){
System.out.println(ColorEnum.RED.getName());
}
}

Answer 2

本来不就有枚举了么？