How to get array input and print in Java using while loop

How to get array input and print in Java using while loop

In this article, we will discuss the concept of How to get array input and print in Java using while loop

In this post, we are going to learn how to write a program to read array input and print elements in an array using while loop in java language

Code to read input and print of  array elements

Code to take input and print elements of an array using while loop

In this code, we are going to learn how to read integer array input given by user and print them using while loop in Java language

Program 1

//Java program to read and print elements a one dimensional array
import java.util.Scanner;
class Array_Sin_Dim_Int_while1{
public static void main (String args[]){
  Scanner scan=new Scanner(System.in);
//create a scanner instance for receives input
// from the user - input from keyboard
System.out.print("Enter the Array length: ");
//Ask input from the user for array length
int len=scan.nextInt();
//Reading the input from user
int arr[]=new int[len]; //diclaration and creation

System.out.println("Enter the array elements");
//Ask input from user for array elements
int i=0;
while(i<len){
arr[i]=scan.nextInt(); 
//Reading the input
 i++;
}
System.out.println("\narray elements are:");
i=0; 
while(i<len){
System.out.println(arr[i]); 
 i++;
}//display every array element
}
}

When the above code is executed, it produces the following result

 

Program 2

//Java program to read and print elements a one sin array using while
import java.util.Scanner;
class Array_Sin_Dim_Int_while2{
public static void main (String args[]){
  Scanner scan=new Scanner(System.in);
//create a scanner instance for receives input
// from the user - input from keyboard
System.out.print("Enter the Array length: ");
int len=scan.nextInt();
int arr[]=new int[len]; //diclaration and creation

System.out.println("Enter the array elements");
//Ask enter the elemnts from user
int i=0;
while(i<len){
System.out.print("[arr["+i+"]:"); 
arr[i]=scan.nextInt(); 
//Reading the input for length
 i++;
}
System.out.println("\narray elements are:");
//Ask input from user
i=0;
while(i<len){
System.out.println("[arr["+i+"]:"+arr[i]); 
//Reading the input for elements
 i++;
}//display every array element
}
}

When the above code is executed, it produces the following result

 

 

Code to take input and print string of an array using while loop

In this code, we are going to learn how to read  string  array input given by user and print the given input using while loop in Java language

Program 1

//Java program to read and print String an array using while
import java.util.Scanner;
class Array_Sin_Dim_Disp_String_While1{
public static void main (String args[]){
  Scanner scan=new Scanner(System.in);
//create a scanner instance for receives input
// from the user - input from keyboard
System.out.print("Enter the Array length: ");
//Ask input from the user for array length
int len=scan.nextInt();
//Reading the input from the user
String arr[]=new String[len]; 
//diclaration and creation of an array

System.out.println("Enter the "+len+" String");
int i=0;
while(i<len){
arr[i]=scan.next(); 
//Taking the input from the user
 i++;
}
System.out.println("\nEntered string are:");

int j=0; 
while(j<len){
System.out.println(arr[j]); 
j++;
}//display every array element
 
}
}

When the above code is executed, it produces the following result

 

Program 2

//Java program to read and print String a array using do-while
import java.util.Scanner;
class Array_Sin_Dim_Disp_String_While2{
public static void main (String args[]){
  Scanner scan=new Scanner(System.in);
//create a scanner instance for receives input
// from the user - input from keyboard
System.out.print("Enter the Array length: ");
//Ask input from the user for array length
int len=scan.nextInt();
//Reading the input from the user
String arr[]=new String[len]; 
//diclaration and creation of an array

System.out.println("Enter the "+len+" String");
int i=0;
while(i<len){
  System.out.print("[arr["+i+"]:");
arr[i]=scan.next(); 
//Reding the input from the user
 i++;
}
System.out.println("\nEntered string are:");
int j=0; 
while(j<len){
System.out.println("[arr["+j+"]:"+arr[j]);
 j++;
}//display every array element
}
}

When the above code is executed, it produces the following result

 

 

Code to take input and print character of an array using while loop

In this code, we are going to learn how to read character array input given by user and print the given input using while loop in Java language

Program 1

//Read and print character of an array using while loop
import java.util.Scanner;
class Arr_One_Dim_Char_While1{
public static void main (String args[]){
  Scanner sc=new Scanner(System.in);
//create a scanner object for Taking input
// from the user - input from keyboard
System.out.print("Enter the Array length: ");
//Ask input from the user for array length
int length=sc.nextInt();
//Reading the input from the user for array length
char arr[]=new char[length]; 
//diclaration and creation of char array

System.out.println("Enter the "+length+" Characters");
int i=0;
while(i<length){
arr[i]=sc.next().charAt(0); 
//Reding the input(characters) from the user
 i++;
}
System.out.println("\nEntered characters are:");
int j=0; 
while(j<length){
System.out.println(arr[j]); 
 j++;
}//display all entered characters
}
}

 

When the above code is executed, it produces the following result

 

Program 2

//Read and print character of an array using while loop
import java.util.Scanner;
class Arr_One_Dim_Char_While2{
public static void main (String args[]){
  Scanner sc=new Scanner(System.in);
//create a scanner object for Taking input
// from the user - input from keyboard
System.out.print("Enter the Array length: ");
//Ask input from the user for array length
int length=sc.nextInt();
//Reading the input from the user
char arr[]=new char[length]; 
//diclaration and creation of an array

System.out.println("Enter the "+length+" Characters");
int i=0;
while(i<length){
  System.out.print("[arr["+i+"]:");
arr[i]=sc.next().charAt(0); 
//Reding the input(characters) from the user
 i++;
}
System.out.println("\nEntered characters are:");
int j=0; 
while(j<length){
  System.out.print("[arr["+j+"]:");
System.out.println(arr[j]); 
 j++;
}//display all entered characters
}
}

When the above code is executed, it produces the following result

 

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