28 lines
1.0 KiB
C#
28 lines
1.0 KiB
C#
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using System;
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public class exercise13
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{
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public static void Main()
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{
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string str1;
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char[] arr1;
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int l,i;
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l=0;
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char ch;
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Console.Write("\n\nReplace lowercase characters by uppercase and vice-versa :\n");
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Console.Write("--------------------------------------------------------------\n");
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Console.Write("Input the string : ");
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str1 = Console.ReadLine();
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l=str1.Length;
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arr1 = str1.ToCharArray(0, l); // Converts string into char array.
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Console.Write("\nAfter conversion, the string is : ");
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for(i=0; i < l; i++)
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{
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ch=arr1[i];
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if (Char.IsLower(ch)) // check whether the character is lowercase
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Console.Write(Char.ToUpper(ch)); // Converts lowercase character to uppercase.
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else
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Console.Write(Char.ToLower(ch)); // Converts uppercase character to lowercase.
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}
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Console.Write("\n\n");
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}
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}
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