Alphabet Character Case-Converter

In this section, you will learn to convert a character (uppercase) into a lowercase character.

Alphabet Character Case-Converter


In this section, you will learn to convert a character (uppercase) into a lowercase character. The java.lang package provides the functionality to convert the uppercase character into a lowercase character. 

Code Description:

The following program helps you in converting a uppercase character (R) into a lowercase character (r). Program takes a character (uppercase) at the console and it converts it  into a lowercase character using the  toLowerCase() method. This method converts the  uppercase character into  the lowercase character and returns converted lowercase character. 

Here is the code of this program:

import java.lang.*;

  public class CharToLowercase{
  public static void main(String args[]) throws IOException{
  BufferedReader buff = 
new BufferedReader(new InputStreamReader(;
  System.out.println("Enter the uppercase character:");
  String s = buff.readLine();
  char c = s.charAt(0);
  char lower = Character.toLowerCase(c);
  System.out.println("Lowercase character: " + lower);

Download this program:

Output of this program.

C:\corejava>java CharToLowercase
Enter the uppercase character:
Lowercase character: r
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Alphabet Character Case-Converter

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  Reload Image
April 12, 2011

public class FirstLetter{ public static void main(String[] args) throws IOException { // FileInputStream f1=new FileInputStream(""); String s1=" hi my name is mohan",arr[]; arr=s1.split(" "); for (int i = 0; i < arr.length; i++) { //System.out.println(arr[i]); if(arr[i].length()!=0) { for (int j = 0; j < arr[i].length(); j++) { if(j==0) { System.out.print(Character.toUpperCase(arr[i].charAt(0))); } else { System.out.print(arr[i].charAt(j)); } } } System.out.print(" "); } } }
Daniel Benjamin
November 4, 2011
Java codings

Pls how can i write the codes in java how to convert a string to character. Thanks
November 14, 2011
Error in the program

import*; import java.lang.*; public class CharToLowercase{ public static void main(String args[]) throws IOException{ BufferedReader buff = new BufferedReader(new InputStreamReader(; System.out.println("Enter the uppercase character:"); String s = buff.readLine(); char c = s.charAt(0); char lower = Character.toLowerCase(c); System.out.println("Lowercase character: " + lower); } } /* hey there is the error in the program toLowerCase(char) in java.lang.Character cannot be applied to (java.lang.String) char lower = Character.toLowerCase(name);
subodh kumar
January 24, 2012
good website

good website