public class Test {
    public static void main(String[] argv) {
// 靜態(tài)初始化數(shù)組
String[] names = { "Michael", "Orson", "Andrew" };
// 動(dòng)態(tài)初始化數(shù)組
String[] animal = new String[4];
// 讓animal 指向 namens 數(shù)組所引用的數(shù)組
names = animal;

System.out.println(names.length);
System.out.println(animal.length);
    }
}

public class Animal {
private String name;
private int age;Animal(String name, int age) {
    this.name = name;
    this.age = age;
}public void info() {
    System.out.println(name + " " + age);
}
    }
public class Test {    public static void main(String[] argv) {
// 動(dòng)態(tài)初始化數(shù)組
Animal[] animal = new Animal[2];
Animal cat = new Animal("cat", 1);
Animal dog = new Animal("dog", 2);
animal[0] = dog;
animal[1] = cat;// 當(dāng)數(shù)組變量引用對(duì)象的方法（或者屬性）的時(shí)候，它就變?yōu)閷?shí)際的Java 對(duì)象
System.out.println(animal.length);
//dog 這個(gè)原本存儲(chǔ)在棧內(nèi)存當(dāng)中的對(duì)象引用通過(guò)調(diào)用對(duì)象的方法變?yōu)閷?shí)際的對(duì)象
dog.info();
animal[0].info();
    }
}