程序无法输出结果，求解答

class People{
    People(){
        name = "wumingsi";
        age = 20;
    }
    public void setName(String a){
        name = a;
        System.out.println("名字:"+name);
    }
    String getName(){
        return name;
    }
    public void setAge(int b){
        age = b;
    System.out.println("年龄:"+age);
    }
    int getAge(){
        return age;
    }
    String name;
    int age;
}
public class People1{
    public static void main(String[] args){
        People c=new People();
        c.getName();
        People d=new People();
        d.getAge();
    }
}

getName和getAge本来就没输出啊