This post explains a simple ArrayList program to add employee details and to display ArrayList data using foreach loop in Java. If you would like to display the arrayList data on a JSP page, go through the following link.
DisplayArrayList.java
package com.arraylist;
import java.util.*;
class Employee{
public int id;
public String name;
public String city;
public static int count = 0;
//zero argument constructor. Gets called by default when an object is created for the Employee class
public Employee(){}
//Parameterized Constructor
public Employee(int id, String name,String city)
{
super();
this.id = id;
this.name = name;
this.city=city;
count++;
}
public int getId() {
return id;
}
public String getName() {
return name;
}
public String getAddress() {
return city;
}
}
public class DisplayArrayList {
public static void main(String[] args) throws Exception
{
List<Employee> list = new ArrayList<Employee>();
list.add(new Employee(1, "Ravi","Delhi"));
list.add(new Employee(2, "Raj","Mumbai"));
list.add(new Employee(3, "Rekha","Chennai"));
list.add(new Employee(4, "Ram","Siliguri"));
for (Employee s : list) //Iterates as long as there are elements in the list. An object s is created of type Employee class.
{
System.out.print("ID, Name and City of the employee are : ");
System.out.println(s.getId()+" "+s.getName()+" " +s.getAddress());
}
}//End of main() method
}//end of DisplayArrayList class
The output of the program is shown in the following picture.
hi, if i have a list of 50 items or employee, and need to display only 10 items in page, and if user want see another 10 items, need to click button to see next 10 items. how i can do that?
if i want to edit ID by increases 1 so how can we do that?
Hi Vishal,
Sorry. Your question is not very clear to me.
If you want to increase the ID by 1, you can do plus 1 and add the record to the list again.
hey if we create a display() method in employee class. how can we call that method in foreach loop
in your java code
Please try the below method.
You can call this function in the Employee class.
void display(List employees){
for (Employee s : employees) //Iterates as long as there are elements in the list. An object s is created of type Employee class.
{
System.out.print("ID, Name and City of the employee are : ");
System.out.println(s.getId()+" "+s.getName()+" " +s.getAddress());
}
}
In Main class,
Employee emp = new Employee();emp.display(list)