Thread: need help in creating array with multiple data type in java

Well, you want to sort the 4 attributes, so when you loop through the ages, why do you only move the age? Why not move the values in the other 3 arrays as well?

it worked, thanks..

is it possible to make custom array lik this book b1=new book(101,"katy","age"); where 101 should be stored in int roll no;
katy in string name and age in int age

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it worked, thanks..

is it possible to make custom array lik this book b1=new book(101,"katy","age"); where 101 should be stored in int roll no;
katy in string name and age in int age
and how to sort age if i give like this

Yes, but you have a bit to learn first, below is some example code for you to peruse. See how much you can understand. Have a look on google for ' java objects' and read around. If you have questions, post, but I will probably redirect you to a website with an explanation

public class Untitled 
{
	public static void main(String[] args) 
	{
		Person[] listOfPeople = new Person[2];
		listOfPeople[0] = new Person("Bill", "Male");
		listOfPeople[1] = new Person("Andy", "Male");
 
		System.out.println(listOfPeople[0]);
                System.out.println(listOfPeople[0].name);
	}
}
 
class Person
{
	public String name, gender;
 
	Person(String name, String gender)
	{
		this.name = name;
		this.gender = gender;
	}
 
	public String toString()
	{
		return "Name: "+name+", gender: "+gender;
	}
}

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ok, done.

is it possible to make custom array lik this book b1=new book(101,"katy","age");

This is not suggesting a "custom array" but a class of your design called "Book", not "book". In Java, class names begin with capital letters (for a good reason, mostly convention). Then,

Book b1 = new Book(101,"katy","age");

calls a Book() constructor with the parameters 101, "katy", and "age" that can be used as you described. You might want to review the tutorial Providing Java Constructors. . . .