scala 通过apply创建类的对象

 package cn.scala_base.oop.scalaobject;

 class Boy(name: String) {
   private var age: Int = 0;

   println(name);

   def this(name: String, age: Int) {
     //调用主构造器
     this(name);
     this.age = age;
   }

 }

 /**
  * 在伴生对象中定义apply方法后可以在创建对象时使用Class(xx)的形式
  */
 object Boy {
   def apply(name: String) = new Boy(name);

   def apply(name: String, age: Int) = new Boy(name, age);
 }

 object ObwithApply {
   def main(args: Array[String]): Unit = {
     val b = Boy("xxx");

     val b2 = Boy("tele", 30);
   }
 }