The string in converts all characters of the string into lower case letter. The string to be any length and calculate its length. scan string character by character and keep checking the index. If a character in an index is in upper case, then add 32 to convert it in lower case.
public class lowercase { public static void main(String args[]) { //Program to Convert string to LowerCase StringBuilder a = new StringBuilder("ABCD"); System.out.println("Original Input : "+a); for(int i=0;i<a.length();i++)//97-122 { if (a.charAt(i) >= 65 && a.charAt(i) <= 90) { int c=(int)a.charAt(i)+32;//65+32=97 66+32=98 67+32=99 68+32=100 a.setCharAt(i,(char)c);//abcd } } System.out.println("Lowercase Output: "+a); } }
Original Input : ABCD Lowercase Output: abcdTo download raw file Click Here
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