Encapsulation

What is Encapsulation?

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Encapsulation is wrapping code and data together into one single unit.
Encapsulation in java is performed using class. A class wraps code (method) and data(variables) together.
Advantages of Encapsulation in Java
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Encapsulation in java has many advantages, which are mentioned below :
We can make read-only and write-only classes using encapsulation.
We can achieve data hiding.
We have control over data.
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class Watch{ 
private int min_Hand;  
private int hr_Hand;  
private int sec_Hand;  

Watch()  
{ hr_Hand=10;
min_Hand=10;
sec_Hand=10;
}

Watch(int hr_Hand,int min_Hand,int sec_Hand)
{this.hr_Hand=hr_Hand;
this.min_Hand=min_Hand;
this.sec_Hand=sec_Hand;

}
//Getter
public int getMin_Hand()
{
return min_Hand;
}
public int getHr_Hand()
{
return hr_Hand;
}
public int getSec_Hand()
{
return sec_Hand;
}

//Setter
public void setHr_Hand(int hr_Hand)
{
this.hr_Hand=hr_Hand;
}
public void setMin_Hand(int min_Hand)
{
this.min_Hand=min_Hand;
}
public void setSec_Hand(int sec_Hand)
{
this.sec_Hand=sec_Hand;
}


void showTime()
{

System.out.println("Hr: "+hr_Hand+" Min: "+min_Hand+" Sec: "+sec_Hand);
}


}

class Test{

public static void main(String[] args) {

Watch w1=new Watch();
//w1.min_Hand=11;  //cant accesss memmber 
//directly
w1.showTime();

Watch w2=new Watch(5,30,45);

int hour=w2.getHr_Hand();
System.out.println(hour);


}