public class User {
private String name;
private int age;
private User(Builder builder) {
this.name = builder.name;
this.age = builder.age;
}
public String getName() {
return name;
}
public int getAge() {
return age;
}
public static class Builder {
private String name;
private int age;
public Builder setName(String name) {
this.name = name;
return this;
}
public Builder setAge(int age) {
this.age = age;
return this;
}
public User build() {
return new User(this);
}
}
}
public class Main {
public static void main(String[] args) {
User user = new User.Builder()
.setName("John")
.setAge(25)
.build();
System.out.println("Name: " + user.getName());
System.out.println("Age: " + user.getAge());
}
}
