切换字符串中所有字符的程序
给定一个字符串,任务是切换字符串的所有字符,即将大写转换为小写,反之亦然。
例子:
Input : gfg
Output : GFG
Input : aBc12#
Output : AbC12#
Input : tu@kmiNi
Output : TU@KMInI
遍历给定的字符串,如果出现大写字符,则转为小写,小写字母转为大写。
C++
// C++ program to toggle all characters
#include
using namespace std;
void toggleChars(char str[])
{
for (int i=0; str[i]!='\0'; i++)
{
if (str[i]>='A' && str[i]<='Z')
str[i] = str[i] + 'a' - 'A';
else if (str[i]>='a' && str[i]<='z')
str[i] = str[i] + 'A' - 'a';
}
}
// Driver code
int main()
{
char str[] = "GeKf@rGeek$";
toggleChars(str);
cout << "String after toggle " << endl;
cout << str << endl;
return 0;
}
Java
// Java program to toggle all characters
class GFG
{
static void toggleChars(char str[])
{
for (int i=0; i='A' && str[i]<='Z')
str[i] = (char) (str[i] + 'a' - 'A');
else if (str[i]>='a' && str[i]<='z')
str[i] = (char) (str[i] + 'A' - 'a');
}
}
// Driver code
public static void main(String[] args)
{
char str[] = "GeKf@rGeek$".toCharArray();
toggleChars(str);
System.out.println("String after toggle ");
System.out.println(String.valueOf(str));
}
}
// This code is contributed by 29AjayKumar
Python3
# Python3 program to toggle all characters
def toggleChars(str):
for i in range(len(str)):
if (str[i] >= 'A' and str[i] <= 'Z'):
str = str[:i] + chr(ord(str[i]) + \
ord('a') - ord('A')) + str[i + 1:];
else if (str[i] >= 'a' and str[i] <= 'z'):
str = str[:i] + chr(ord(str[i]) + \
ord('A') - ord('a')) + str[i + 1:];
return str;
# Driver code
str = "GeKf@rGeek$";
str = toggleChars(str);
print(str);
# This code is contributed by 29AjayKumar
C#
// C# program to toggle all characters
using System;
class GFG
{
static void toggleChars(char []str)
{
for (int i = 0; i < str.Length; i++)
{
if (str[i] >= 'A' && str[i] <= 'Z')
str[i] = (char) (str[i] + 'a' - 'A');
else if (str[i] >= 'a' && str[i] <= 'z')
str[i] = (char) (str[i] + 'A' - 'a');
}
}
// Driver code
public static void Main(String[] args)
{
char []str = "GeKf@rGeek$".ToCharArray();
toggleChars(str);
Console.WriteLine("String after toggle ");
Console.WriteLine(String.Join("",str));
}
}
// This code is contributed by Princi Singh
Javascript
C++
// C++ program to toggle all characters
#include
using namespace std;
void toggleChars(char str[])
{
for (int i=0; str[i]!='\0'; i++)
{
if (isalpha(str[i])) {
str[i] = (char)(str[i]^(1<<5));
}
}
}
// Driver code
int main()
{
char str[] = "GeKf@rGeek$";
cout << "String before toggle " << endl;
cout << str << endl;
toggleChars(str);
cout << "String after toggle " << endl;
cout << str << endl;
return 0;
}
// This code is contributed by @kaustubhvats08
Java
// Java program to toggle all characters
class GFG
{
static void toggleChars(char str[])
{
for (int i=0; i
Python3
# Python3 program to toggle all characters
def toggleChars(s):
for i in range(len(s)):
if s[i].isalpha():
s = s[:i] + str(chr(ord(s[i])^(1<<5))) + s[i+1:]
return s;
# Driver code
s = "GeKf@rGeek$";
print("String before toggle")
print(s)
s = toggleChars(s);
print("String after toggle")
print(s);
# This code is contributed by @kaustubhvats08
C#
// C# program to toggle all characters
using System;
class GFG
{
static void toggleChars(char []str)
{
for (int i = 0; i < str.Length; i++)
{
if (Char.IsLetter(str[i])){
str[i] = (char)(str[i]^(1<<5));
}
}
}
// Driver code
public static void Main(String[] args)
{
char []str = "GeKf@rGeek$".ToCharArray();
Console.WriteLine("String before toggle ");
Console.WriteLine(String.Join("",str));
toggleChars(str);
Console.WriteLine("String after toggle ");
Console.WriteLine(String.Join("",str));
}
}
// This code is contributed by @kaustubhvats08
Javascript
输出:
gEkF@RgEEK$
我们可以使用按位异或运算来切换给定字符串中的所有字符
正如我们所知,小写字符和大写字符大小写的 ascii 值仅相差 1 位(第 5 位)。我们可以简单地切换该位来切换字符串的字符大小写。
C++
// C++ program to toggle all characters
#include
using namespace std;
void toggleChars(char str[])
{
for (int i=0; str[i]!='\0'; i++)
{
if (isalpha(str[i])) {
str[i] = (char)(str[i]^(1<<5));
}
}
}
// Driver code
int main()
{
char str[] = "GeKf@rGeek$";
cout << "String before toggle " << endl;
cout << str << endl;
toggleChars(str);
cout << "String after toggle " << endl;
cout << str << endl;
return 0;
}
// This code is contributed by @kaustubhvats08
Java
// Java program to toggle all characters
class GFG
{
static void toggleChars(char str[])
{
for (int i=0; i
Python3
# Python3 program to toggle all characters
def toggleChars(s):
for i in range(len(s)):
if s[i].isalpha():
s = s[:i] + str(chr(ord(s[i])^(1<<5))) + s[i+1:]
return s;
# Driver code
s = "GeKf@rGeek$";
print("String before toggle")
print(s)
s = toggleChars(s);
print("String after toggle")
print(s);
# This code is contributed by @kaustubhvats08
C#
// C# program to toggle all characters
using System;
class GFG
{
static void toggleChars(char []str)
{
for (int i = 0; i < str.Length; i++)
{
if (Char.IsLetter(str[i])){
str[i] = (char)(str[i]^(1<<5));
}
}
}
// Driver code
public static void Main(String[] args)
{
char []str = "GeKf@rGeek$".ToCharArray();
Console.WriteLine("String before toggle ");
Console.WriteLine(String.Join("",str));
toggleChars(str);
Console.WriteLine("String after toggle ");
Console.WriteLine(String.Join("",str));
}
}
// This code is contributed by @kaustubhvats08
Javascript
输出
String before toggle
GeKf@rGeek$
String after toggle
gEkF@RgEEK$