Question

in Java Create a custom class Employee with field like name , empNo and salary. a. Create 5 objects b. Add all objects to ArrayList c. Print all employee details from ArrayList . d. Remove employee having salary less than 5000 $ [12] e. Insert a new employee object with more salary value at same index at which other object was removed. *

Answer 1

#source code:

import java.util.*;
class Employee{
String name;
int empNo;
int Salary;
Employee(String name,int empNo,int Salary){
this.name=name;
this.empNo=empNo;
this.Salary=Salary;
}
public static void main(String args[]){
Employee emp1=new Employee("suresh",3,12000);
Employee emp2=new Employee("vishnu",5,8000);
Employee emp3=new Employee("prasad",4,9000);
Employee emp4=new Employee("gangarao",2,4000);
Employee emp5=new Employee("kumari",1,15000);
Employee emp6=new Employee("siva",7,11000);
ArrayList<Employee> emplist=new ArrayList<Employee>();
emplist.add(emp1);
emplist.add(emp2);
emplist.add(emp3);
emplist.add(emp4);
emplist.add(emp5);
Iterator iterStart=emplist.iterator();
System.out.println("Employee details:");
while(iterStart.hasNext()){
Employee eachEmp=(Employee)iterStart.next();
System.out.println(eachEmp.name+" "+eachEmp.empNo+" "+eachEmp.Salary);
}
System.out.println("Employee details remove whose salary less than 5000:");
Iterator iterStart2=emplist.iterator();
int store=0,valid=0;
while(iterStart2.hasNext()){
Employee eachEmp=(Employee)iterStart2.next();
if(eachEmp.Salary<5000){
valid=store;
iterStart2.remove();
}
store=store+1;
}

Iterator iterStart3=emplist.iterator();
while(iterStart3.hasNext()){
Employee eachEmp=(Employee)iterStart3.next();
System.out.println(eachEmp.name+" "+eachEmp.empNo+" "+eachEmp.Salary);
}
System.out.println("Adding Employee to ArrayList");
emplist.add(emp6);
Iterator iterStart5=emplist.iterator();
while(iterStart5.hasNext()){
Employee eachEmp=(Employee)iterStart5.next();
System.out.println(eachEmp.name+" "+eachEmp.empNo+" "+eachEmp.Salary);

}

}

}

#output:

#if you have any doubt comment below....