class Person { private String name; private int age; public String getName() { return name; } public void setName(String name) { this.name = name; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } @Override public String toString() { return String.format("%s (%d years old)", name, age); }} Person p = new Person();p.setName("Taro");p.setAge(20);String s = p.toStr