Java program to fill and print an array of characters

Java program to fill and print an array of characters

In this article, we will discuss the concept of Java program to fill and print an array of characters

In this post, we are going to learn how to write a program to fill and print array of characters (Character elements in single dimensional array)  using  for, while and do-while  loop in Java language

Code to fill and print Characters of an array

Code to  input and print characters of an array using for loop

In this code, we are going to learn how to fill and print character elements (user input) in single dimensional array using for loop in Java language

Program 1

//read and Print character of an array using for loop
import java.util.Scanner;
class Disp_Array_Of_Char_For{
public static void main (String args[]){
  Scanner sc=new Scanner(System.in);
  //Scanner class for user input
  
System.out.println("Enter array length: ");
int len=sc.nextInt();
char[] charArr=new char[len]; 
//Declaring a character Array 
  System.out.println("\n*** Read Characters ***");
System.out.println("Enter the "+len+" Characters");
for(int i=0; i<len; i++){
charArr[i]=sc.next().charAt(0); 
//Reding the input(characters) from the user
}
System.out.println("\n*** Print Characters ***");
System.out.println("Entered characters are:");
for(int j=0; j<len; j++){
System.out.println(charArr[j]); 
}//display all entered characters
}
}

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

Enter Array length
4

Enter the 4 characters
C
o
d
e

*** Print Characters ***
Entered characters are:
C
o
d
e

Code to  input and print characters of an array using while loop

In this code, we are going to learn how to fill and print character elements (user input) in single dimensional array using while loop in Java language

Program 2

//read and Print character of an array using while loop
import java.util.Scanner;
class Disp_Array_Of_Char_While{
public static void main (String args[]){
  Scanner sc=new Scanner(System.in);
  //Scanner class for user input
  
System.out.println("Enter array length: ");
int len=sc.nextInt();
char[] charArr=new char[len]; 
//Declaring a character Array 
  System.out.println("\n*** Read Characters ***");
System.out.println("Enter the "+len+" Characters");
int i=0; 
while(i<len){
charArr[i]=sc.next().charAt(0); 
//Reding the input(characters) from the user
 i++;
}
System.out.println("\n*** Print Characters ***");
System.out.println("Entered characters are:");
int j=0; 
while(j<len){
System.out.println(charArr[j]); 
 j++;
}//display all entered characters
}
}

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

Enter Array length
6

*** Read Characters ***
Enter the 6 characters
L
e
n
g
t
h

*** Print Characters ***
Entered characters are:
L
e
n
g
t
h

Code to  input and print characters of an array using do-while loop

In this code, we are going to learn how to fill and print character elements (user input) in single dimensional array using do-while loop in Java language

Program 3

//read and Print character of an array using do-while loop
import java.util.Scanner;
class Disp_Array_Of_Char_DoWhile{
public static void main (String args[]){
  Scanner sc=new Scanner(System.in);
  //Scanner class for user input
  
System.out.println("Enter array length: ");
int len=sc.nextInt();
char[] charArr=new char[len]; 
//Declaring a character Array 
  System.out.println("\n*** Read Characters ***");
System.out.println("Enter the "+len+" Characters");
int i=0; 
do{
charArr[i]=sc.next().charAt(0); 
//Reding the input(characters) from the user
 i++;
}while(i<len);
System.out.println("\n*** Print Characters ***");
System.out.println("Entered characters are:");
int j=0; 
do{
System.out.println(charArr[j]); 
 j++;
}while(j<len);
  //display all entered characters
}
}

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

Enter Array length
6

*** Read Characters ***
Enter the 6 characters
S
c
h
o
o
l


*** Print Characters ***
Entered characters are:
S
c
h
o
o
l

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