40分，简单问题---关于抽象类引用
Soldier 和 Monster 都是抽像类，想随机的产生soldier 和monster 的级别，可这样出错了，大虾进来看看，

Soldier soldier;
switch (tslevel + 1) {
case 1:
soldier = new WeakSoldier(((tslevel + 1) * 10 + 5),
tslevel + 1);
break;
case 2:
soldier = new NormalSoldier(((tslevel + 1) * 10 + 5),
tslevel + 1);
break;
case 3:
soldier = new StrongSoldier(((tslevel + 1) * 10 + 5), tslevel + 1);
}
/**
* 随机产生怪
*/
Monster monster;
switch (tmlevel + 1) {
case 1:
monster = new BabyMonster(((tslevel + 1) * 10), tslevel + 1);
break;
case 2:
monster = new NormalMonster(((tslevel + 1) * 10), tslevel + 1);
break;
case 3:
monster = new FinalMonster(((tslevel + 1) * 10), tslevel + 1);
break;
}

System.out.println( "战士级别 " + (tslevel + 1) + " " + "战士HP " + soldier.HP);//soldier.hp 出错 说没有定义soldier
System.out.println( "怪级别 " + (tmlevel + 1) + " " + "怪HP " + monster.HP);//monster.HP 出错，说没有定义monster

[解决办法]
不是说没有定义，是说那两个变量没有初始化吧？
Soldier soldier = null;
Monster monster = null;