javaClassAr2, Java

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//'main' method must be in a class 'Rextester'.
//openjdk version '11.0.5'

////////////////////////////////////////////////////////////////////////////////javaClassAr2:Creating and Initializing an array of objects in Java class
//this code is  created by Rezaul Hoque on September 20,2022;
//contact:jewelmrh@yahoo.com;Dhaka,Bangladesh;https://rezaulhoque.wordpress.com,https://hoquestake.blogspot.com
//note: codes shared by Rezaul Hoque on rextester are not for sale; they are created and shared to facilitate the algorithm learning process; many like Hoque use this platform to practice programming ;Rezaul hopes his contribution helps others to fine tune their learning;
//////////////////////////////////////////////////////////////////////////////
import java.util.*;
import java.lang.*;

class Demo{
String name;
int id;
int phone;
public Demo(){
}
public Demo(String n,int a,int c){
this.name=n;
this.id=a;
this.phone=c;
}
public String getN(){return name;}
public int getID(){return id;}
public int getP(){return phone;}
}

class Rextester
{  
    public static void main(String args[])
    {
        Demo[] e=new Demo[]{ 
                          new Demo("XYZ",89,12345),
                          new Demo("FGH",90,54321),
                          new Demo ("QWE",21,45678)
                        };
  System.out.println("ID\tName\tPhone");
for (int i=0;i<3;i++)
System.out.printf("%d\t%s\t%d\n",e[i].getID(),e[i].getN(),e[i].getP());

}
}

[ + ] Show input
Compilation time: 0.61 sec, absolute running time: 0.2 sec, cpu time: 0.13 sec, memory peak: 35 Mb, absolute service time: 0,88 sec