Read and print Characters of one dim array in Java language

Read and print Characters of one dim array in Java language

In this tutorial, we will discuss the concept of Read and print Characters of one dim array in Java language

In this topic, we are going to learn how to read and print Characters using  one dimensional array in Java programming language  using loops.

 

In this blog, We have already discuss that “What is an array“, type of arrays and how to access it(one dim, two dim and three dim arrays)

Arrays are the special type of variables to store Multiple type of values(int, string,char, etc)under the same name in the continuous memory location. we can be easily accessed using the indices(indexes)

Here,

• C,H,A,R represent the character elements of the array
• 0,1,2,3 and 4 represent the index of the array which is used to access the array elements
• 1,2,3,4 and 5 represent the length of the array

Code to input and display characters of one dim array

Code to input and display – Using for loop

In this program, we are briefing input characters of an array and then print them using for loop in Java language

Program 1

//Java program to read and print character of an array using for
import java.util.Scanner;
class Arr_One_Dim_Char_For1{
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");
for(int i=0; i<length; i++){
arr[i]=sc.next().charAt(0); 
//Reding the input(characters) from the user
}
System.out.println("\nEntered characters are:");
for(int j=0; j<length; j++){
System.out.println(arr[j]); 
}//display all entered characters
}
}

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

Enter the array length:6

Enter the 6 characters
v
a
n
n
a
n

 

Entered characters are

v
a
n
n
a
n

Program 2

//Java program to read and print character of an array using for
import java.util.Scanner;
class Arr_One_Dim_Char_For2{
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");
for(int i=0; i<length; i++){
    System.out.print("[arr["+i+"]:");
arr[i]=sc.next().charAt(0); 
//Reding the input(characters) from the user
}
System.out.println("\nEntered characters are:");
for(int j=0; j<length; j++){
    System.out.print("[arr["+j+"]:");
System.out.println(arr[j]); 
}//display all entered characters
}
}

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

 

Code to input and display – Using while loop

In this program, we are briefing input characters of an array and then print them using while loop in Java language

Program 1

//Java program to read and print character of an array using while
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

Enter the array length:7

Enter the 7 characters
P
r
o
g
r
a
m




Entered characters are

P
r
o
g
r
a
m

 

Program 2

//Java program to read and print character of an array using while
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

 

 

Code to input and display -Using do-while loop

In this program, we are briefing input characters of an array and then print them using do-while loop in Java language

Program 1

//Java program to read and print character of an array using do-while
import java.util.Scanner;
class Arr_One_Dim_Char_DoWhile1{
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;
do{
arr[i]=sc.next().charAt(0); 
//Reding the input(characters) from the user
 i++;
}while(i<length);
System.out.println("\nEntered characters are:");
int j=0; 
do{
System.out.println(arr[j]); 
 j++;
}while(j<length);
//display all entered characters
}
}

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

Enter the array length:4
Enter the 4 characters
C
h
a
r

Entered characters are
C
h
a
r

 

Program 2

//Java program to read and print character of an array using do-while
import java.util.Scanner;
class Arr_One_Dim_Char_DoWhile2{
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; 
do{
    System.out.print("[arr["+i+"]:");
arr[i]=sc.next().charAt(0); 
//Reding the input(characters) from the user
 i++;
}while(i<length);
System.out.println("\nEntered characters are:");
int j=0; 
do{
    System.out.print("[arr["+j+"]:");
System.out.println(arr[j]); 
 j++;
}while(j<length);
//display all entered characters
}
}

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

 

 

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