package sort;
public class WorkArea {
private double random;
private int rnum;
public void setRandom(double ran){
this.random=ran;
}
public double getRandom(){
return random;
}
public void setRnum(int rnum){
this.rnum=rnum;
}
public int getRnum(){
return rnum;
}
public static void main(String[] args){
WorkArea[] wa=new WorkArea[100];
double[] dou=new FileOpt().filIn();
for(int i=0;i<wa.length;i++){
[color=red]wa[i].setRandom(dou[i]);[/color]
}
}
}
程序如上,红色字体部分为什么会抛出异常?