使用Java的反射机制来简化代码并避免重复调用set方法。可以使用下面的示例代码来实现：

import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

public class Person {
    private String name;
    private int age;
    private String address;

    public Person() {}

    public Person(String name, int age, String address) {
        this.name = name;
        this.age = age;
        this.address = address;
    }

    public void setValues(Object ...values) throws NoSuchMethodException, SecurityException, IllegalAccessException, IllegalArgumentException, InvocationTargetException, NoSuchFieldException {
        Class clazz = getClass();
        Field[] fields = clazz.getDeclaredFields();
        int i = 0;
        for (Field field : fields) {
            Method method = clazz.getDeclaredMethod("set" + capitalize(field.getName()), field.getType());
            method.invoke(this, values[i++]);
        }
    }

    private String capitalize(String s) {
        if (s == null || s.length() == 0) {
            return s;
        }
        return Character.toUpperCase(s.charAt(0)) + s.substring(1);
    }

    // Getter and Setter methods

    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;
    }

    public String getAddress() {
        return address;
    }

    public void setAddress(String address) {
        this.address = address;
    }
}

在这个示例中，我们使用setValues方法来设置所有字段的值。该方法使用反射来获取每个字段的setter方法，然后调用该方法来设置字段的值。这样，使用该类的代码就不需要反复调用set方法来设置多个字段了，而是一次性设置所有字段的值。