重写toString()

/**
 * 重写toString() 
 */
public class Test {

    public static void main(String[] args) {
        Person person = new Person("学生A", 20, true);
        
        /*System.out.println("name: " + person.getName());
        System.out.println("age: " + person.getAge());
        System.out.println("isBoy: " + person.isBoy());*/
        
        System.out.println(person);
    }

}

class Person {
    private String name;
    private int age;
    private boolean boy;
    
    public Person(String name, int age, boolean boy) {
        this.name = name;
        this.age = age;
        this.boy = boy;
    }
    
    @Override
    public String toString() {
        return "Person ["+ 
                "name:" + name +
               "; age:" + age  +
             "; isBoy:" + boy  + "]";
    }
    
    /**
     * eclipse下快速生成getter/setter的方法
     * 非常常使用
     * 快键键：
     * 1. alt + shift + s"
     * 2. r
     * 3. tab
     * 4. 回车
     * 5. shift + tab
     * 6. 回车
     */
    public String getName() {
        return name;
    }
    public int getAge() {
        return age;
    }
    public void setAge(int age) {
        this.age = age;
    }
    public boolean isBoy() {
        return boy;
    }
    public void setBoy(boolean boy) {
        this.boy = boy;
    }
    public void setName(String name) {
        this.name = name;
    }
}