无法读取和打印出.csv文件

Question

package animalfilereader;
/**
 * @author Greg
 */
public class Animal {

    private int id;
    private String name;
    private String type;
    private String age;

    //getters and setters
    public int getId() {
        return id;
    }
    public void setId(int id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getType() {
        return type;
    }
    public void setType(String type) {
        this.type = type;
    }
    public String getAge() {
        return age;
    }
    public void setAge(String age) {
        this.age = age;
    }
    // appending and reading 
    @Override
    public String toString(){
        return "\nID = "+getId()+" Name: "+getName()+" Type = "+getType()+" Age = "+getAge();
    }
}

后面是类和.csv文件

distance = (
    Store.coordinates.cast(Geometry)
    .distance_centroid(query_centroid)
    .cast(db.Float)
    .label('distance')
)

stores = stores.order_by(distance).add_columns(distance)

animals.csv

1,Timone,Meerkat,5 years old 
2,Pumba,Warthog,7 years old 
3,Simba,Lion,3 years old 
4,Rafiki,Monkey,50 years old

我一直收到此错误

Exception in thread "main" java.lang.NumberFormatException: For input string: "data"
    at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
    at java.lang.Integer.parseInt(Integer.java:580)
    at java.lang.Integer.parseInt(Integer.java:615)
    at animalfilereader.AnimalFileReader.main(AnimalFileReader.java:51)
Java Result: 1
BUILD SUCCESSFUL (total time: 1 second)

不确定发生了什么。有人能指出我正确的方向吗？