Display Array Elements in java

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Hello guys, welcome to Lingarajtechhub.com. Today we are going to discuss the Display Array Elements in java.

    package com.array.java;

    import java.util.Scanner ;
    public class Display_array {
    public static void main(String[] args) {
	    int arr[ ]=new int[5];
	    Scanner Sc=new Scanner(System.in);
	    System.out.println("enter the values in an array:\n");
	    for(int i=0;i<arr.length;i++) {
	   	arr[i]=Sc.nextInt();
	     }
	    System.out.println("now Display All Element:\n");
	    for(int i=0;i<arr.length;i++) {
	    System.out.println(arr[i]);
        }
	 }
    }

Line-1:

 ❖ Package com.array.java;

            It is a java package( com.array.java) which is a collection of classes and this package is created in a java project .

Line-3:

❖ import java.util.Scanner;

             Scanner is a class in java. util package used for obtaining the input of the primitive types like int, double, etc. and strings .

Line-4:

❖ public class Display_array{

            *Here  class Display_array  is defined as a class which is a template used to create objects and to define object data types and methods .

 >–and it’s defined as public because it can be accessed anywhere .

Line-5:

 ❖ public static void main(String[] args)

             >>– it is a main method in which we can execute a program //public :it is an access modifier of the main function which must be public so that the JVM which is (Java Virtual Machine)can access and execute this method. 

           //If a method is not public, then access is restricted and its showing error //static is a keyword in which main method has must to be static in which JVM can load the class into memory and call the main method without creating an instance

         //void it means no return type

         //main() is function string[]args : string means collection of characters ,String[] args represents a collection of Strings that are separated by a space and can be typed into the program on the terminal directly

Line-6:

 ❖ int arr[ =new int[5] ;

        >>– here we declare array size and initialise the array element which is integer type.

Line-7:

 ❖ Scanner sc=new Scanner(System.in);

          >>–it means here scanner is a class and Sc is the instance of the object which is new Scanner.System.in is an argument 

Line-8:

❖ System.out.println(“Enter the values in an array:\n “);   

          >>– it means System is a class name and out is an instance of the System println is print a new line .

Line-9:

❖ for(int i=0;i<arr.length;i++) {

           >>it means  loop through the array by incrementing the value of i.

Line-10:

  •  arr[i]=sc.nextInt();

         >>– here i is a variable that we take and Sc is our instance name which is created for an object and nextInt() is a method method of a Scanner object that reads in a string of digits or char and converts them into an int type.

Line-13:

❖ System.out.println(“now display all Element:\n”);

                >>– it means System is a class name and out is an instance of the System println is print a new line .

      >>– display the element which is taken by keyboard.

Line-14:

❖ for(int i=0;i<arr.length;i++) {

           >>it means  loop through the array by incrementing the value of i.

Line-15:

❖ System.out.println(arr[i]);

                >>– it means System is a class name and out is an instance of the System println is print a new line .

      >>– arr[i] it means to display the array.

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SONALIN SAHOO

Myself Sonalin Shaoo. I am quite happy to contribute here some java programming content and my friends Lipsa Mohanty ,Sushil Puhan, Aswin Kumar Nayak also help me to contribute their Opinion on this .

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