java初学陷阱

public class Animal {
	String animalName;
	int animalAge;
	double animalWeight;
	
	public String getAnimalName() {
		return animalName;
	}
	public void setAnimalName(String animalName) {
		this.animalName = animalName;
	}
	public int getAnimalAge() {
		return animalAge;
	}
	public void setAnimalAge(int animalAge) {
		this.animalAge = animalAge;
	}
	public double getAnimalWeight() {
		return animalWeight;
	}
	public void setAnimalWeight(double animalWeight) {
		this.animalWeight = animalWeight;
	}
	public Animal(String animalName, int animalAge, double animalWeight) {
		this.setAnimalName(animalName);
		this.setAnimalAge(animalAge);
		this.setAnimalWeight(animalWeight);
	}
	public static void main(String[] args) {
		Animal[] animals ={new Animal("dog", 10, 50.6),new Animal("cat", 11, 60.2),new Animal("horse", 20,30.2)};
		for (int i = 0; i < animals.length; i++) {
			System.out.println("animalName is "+animals[i].animalName +"\n"+"animalAge is "+animals[i].animalAge +"\n"+"animalWeight is "+animals[i].animalWeight +"\n\n");
		}
	}