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import java.io.*; public class casechange { public static void main()throws IOException { BufferedReader r = new BufferedReader(new InputStreamReader(System.in)); String s, s2=""; int l, i, j; char ch; System.out.println("Enter a string:"); s = r.readLine(); l = s.length(); for(i=0;i<l;i++) { ch = s.charAt(i); if(ch>='A'&&ch<='Z') ch = (char)(ch+32); else if(ch>='a'&&ch<='z') ch = (char)(ch-32); s2+=ch; } System.out.println("Input: "+s); System.out.println("Output: "+s2); } } |
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<h3>Output</h3> Enter a string: This Is the COUNtry of INDIA Input: This Is the COUNtry of INDIA Output: tHIS iS THE counTRY OF india |
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