The meaning of Encapsulation, is to make sure that "sensitive" data is hidden from users.
it is like the pojo classes in andorid studio


To achieve this, you must :::
    1. declare class variables/attributes as private
    2. provide public get and set methods to access and update the value of a private variable


example :::
    public class Another {

        private int a;
        private int b;
        private int c;
    
        public Another(int a, int b, int c) {
            this.a = a;
            this.b = b;
            this.c = c;
        }
    
        public Another(){
            // default
        }
    
        public int getA() {
            return a;
        }
    
        public int getB() {
            return b;
        }
    
        public int getC() {
            return c;
        }
    
        public void setA(int a) {
            this.a = a;
        }
    
        public void setB(int b) {
            this.b = b;
        }
    
        public void setC(int c) {
            this.c = c;
        }
    }