Encapsulation program in java

 Program:-1


class  Employee
{
int empid;
System.out.println(empid);
}
class company
{
public static void main (String[] args )
{
Employee s1 = new Employee();
s1.empid=102;
}
}

 Program:-2

class  Employee
{
int empid;
}
class company
{
public static void main (String[] args )
{
Employee s1 = new Employee();
s1.empid=102;
System.out.println(empid);
}
}
 Program:-3

class  Employee
{
  int empid; // data heiding 
 
}
class company
{
public static void main (String[] args )
{
Employee s1 = new Employee();
s1.empid=123;
System.out.println(s1.empid);
}
}


Program:-4

class  Employee
{
  int empid; // data heiding 
}
class company
{
public static void main (String[] args )
{
Employee s1 = new Employee();
s1.empid=123;
System.out.println(s1.empid());
}
}

Program:-5
class  Employee
{
private int empid; // data heiding 
 
public void setempid(int eid)
{
empid=eid;
}
 
public int  getempid()
{
return empid;
}
}
class company
{
public static void main (String[] args )
{
Employee s1 = new Employee();
s1.setempid(102);
System.out.println(s1.getempid());
}
}

Program:-6 

 public class Employee {
   private String name;
   private String idNum;
   private int age;

   public int getAge() {
      return age;
   }

   public String getName() {
      return name;
   }

   public String getIdNum() {
      return idNum;
   }

   public void setAge( int newAge) {
      age = newAge;
   }

   public void setName(String newName) {
      name = newName;
   }

   public void setIdNum( String newId) {
      idNum = newId;
   }
}


 Program:-7

 class Employee {
   private String name;
   private String idNum;
   private int age;

   public int getAge() {
      return age;
   }

   public String getName() {
      return name;
   }

   public String getIdNum() {
      return idNum;
   }

   public void setAge( int newAge) {
      age = newAge;
   }

   public void setName(String newName) {
      name = newName;
   }

   public void setIdNum( String newId) {
      idNum = newId;
   }
}


Program:-8
class Employee {
   private String name;
   private String idNum;
   private int age;

   public int getAge() {
      return age;
   }

   public String getName() {
      return name;
   }

   public String getIdNum() {
      return idNum;
   }

   public void setAge( int newAge) {
      age = newAge;
   }

   public void setName(String newName) {
      name = newName; 
   }

   public void setIdNum( String newId) {
      idNum = newId;
   }
}

class xyz{
public static void main(String args[]){
Employee s1= new Employee();
s1.setAge(03);
System.out.println(s1.getAge());
s1.setName("sonu");
System.out.println(s1.getName());
s1.setIdNum("44sonu ");
System.out.println(s1.getIdNum());
}
}


Program:-9

class Employee {
private String college="KGF ";
public String getCollege(){
return college;
}
 }


 Program:-10

class Employee{  
//private data member  
private String college;  
//getter method for college  
public void setCollege(String college){  
this.college=college;  
}  
}  


Program:-11

 
  
class Account {  

private long acc_no;  
private String name,email;  
private float amount;  
  
public long getAcc_no() {  
    return acc_no;  
}  
public void setAcc_no(long acc_no) {  
    this.acc_no = acc_no;  
}  
public String getName() {  
    return name;  
}  
public void setName(String name) {  
    this.name = name;  
}  
public String getEmail() {  
    return email;  
}  
public void setEmail(String email) {  
    this.email = email;  
}  
public float getAmount() {  
    return amount;  
}  
public void setAmount(float amount) {  
    this.amount = amount;  
}  
  
}  
class TestEncapsulation {  
public static void main(String[] args) {  
    
    Account acc = new Account();  
  
    acc.setAcc_no(7560504000L);  
    acc.setName("Sonoo Jaiswal");  
    acc.setEmail("sonoojaiswal@gmail.com");  
    acc.setAmount(500000f);  
    //getting values through getter methods  
    System.out.println(acc.getAcc_no()+" "+acc.getName()+" "+acc.getEmail()+" "+acc.getAmount());  
}  
}  



 Program:-12

class Circle {
 private double radius = 1; 
/** Find area of the circle */
 public double getArea() {
return radius * radius * Math.PI;
}
public static void main(String[] args) {
  Circle myCircle = new Circle();
  
  System.out.println("Radius is " + myCircle.radius);
  System.out.println("Area of cirle: " +myCircle.getArea()); 
 }
}


 Program:-13

class student {
String name;
int age;
public int getAge(){
return age;
}
public void setAge(int age){
if(age>20){
System.out.println("you are too old be a student in our nursery schoole");
}
else
{
this.age= age;
}
}
}
class xyz {
public static void main(String args[]){
student s1= new student();
s1.setAge(4);
System.out.println(s1.getAge());
}
}



Program:-14


 Program:-15

 Program:-16

 Program:-17 



Comments

Post a Comment