# Write a program on 1d array to display a no - Algomentor

## Write a program on 1d array to display a no - data structure and algorithm made easy

Hi, welcome to the series of data structure and algorithm made easy this session of data structure and algorithm we learn about 4 programs the program is all about how to take an array and print the elements of the array.

1. the first program is how to print static array in c++.
2. the second program is about how to take an array as input and print the elements of the array in c++.
3. he first program is how to print static array in java.
4. the second program is about how to take an array as input and print the elements of the array in java.

So in the first program of array data structure, we will learn about basic coding of the array so first, we declare an array with predefined size "10" we just print the number we implement this program in c++.

Here is the code

#include<iostream>

using namespace std;

int main()

{

int arr = {1,2,3,4,5,6,7,8,9,10};

for(int i=0;i<10;i++)

{

cout<<arr[i]<<" ";

}
}
In the second program of array data structure, we will ask user to input the size of the array and then we take input one by one and we print the array we implement this program in c++.

Here is the code

#include<iostream>
using namespace std;
int main()
{
int n;
cin>>n;
int arr[n];
for(int i=0;i<n;i++)
{
cin>>arr[i];
}
cout<<"printing Array element"<<endl;
for(int i=0;i<n;i++)
{
cout<<arr[i]<<" ";
}
}

the output of the following code is

So in the first program of array data structure, we will learn about basic coding of the array so first, we declare an array with predefined size "10" we just print the number we implement this program in java.

Here is the code

import java.lang.*;
import java.io.*;

class Algomentor   //give your own class name
{
public static void main (String[] args) throws java.lang.Exception
{
try {
int arr[] = {1,2,3,4,5,6,7,8,9,10};
for(int i=0;i<10;i++)
{
System.out.print(arr[i]+" ");
}
} catch(Exception e) {
} finally {
}
}
}

the output of the following code is

In the second program of array data structure, we will ask the user to input the size of the array and then we take input one by one and we print the array we implement this program in java.

Here is the code

import java.lang.*;
import java.util.*;
import java.io.*;

class Algomentor   //give your own class name
{
public static void main (String[] args) throws java.lang.Exception
{
try {
Scanner sc = new Scanner(System.in);
int n = sc.nextInt();
int arr[] = new int[n];
for(int i=0;i<n;i++)
{
arr[i] = sc.nextInt();
}
for(int i=0;i<n;i++)
{
System.out.print(arr[i]+" ");
}
} catch(Exception e) {
} finally {
}
}
}

the output of the following code is

To run the c++ code you need to install c++ I already made a blog for this How to install c++ you can read the article to hear.

For running your code in java If you want to run code locally you need to install Java JDK for it and need a text editor if you are using the online editor I recommend you to use CodeChef Editor for this is super easy to use and great fun.

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