Operation string, python string operation

Operation string, python string operation

Public class OperationString {public static void main (String [] args) {String str [] = new String [4]; // define a 4-character string array str [0] = "first"; str [1] = "second"; StringBuffer sb1 = new StringBuffer (str [0]); // use the string str [0] to construct a StringBuffer. The content of sb1 is "first"; sb1.insert (0, str [1]); // before the position of the StringBuffer object is 0, insert the String str [1], StringBuffer, and the content of sb1 is "secondfirst"; str [2] = new String (sb1 ); // The StringBuffer object sb1 is used to construct and generate the str [2] string, which assigns the value of sb1 to str [2], in this case, the str [2] content is "secondfirst" StringBuffer sb2 = new StringBuffer (); // A StringBuffer object sb2 is constructed by default, the initial content is empty, and the content of sb2 is: "" sb2.append ('D'); // append the character 'D' to the end of the StringBuffer object sb2. The content of sb2 is: "D" sb2.append ("admin "); // append the string "admin" to the end of the StringBuffer object sb2. The content of sb2 is "D admin" sb2.insert (1, "ear "); // Insert the string "ear ", the content of sb2 is "Dear admin" str [3] = new String (sb2); // The StringBuffer object sb2 constructs the str [3], assign the value of sb2 to str [3], str [3] = "Dear admin" for (int I = 0; I <4; I ++) {System. out. println ("str [" + I + "] =" + str [I]) ;}}

Running result:

String operations

This should be well written.

The order may be slightly different:
# Include <stdio. h>
# Include <malloc. h>
# Include <string. h>

Void main ()
{
Char line [100];
Char * str1 = NULL, * str2 = NULL, * str3 = NULL, * p = NULL, * str4 = NULL;
Int n, m;

Printf ("String1 :");
Memset (lines, 0,100 );
Gets (line );

Str1 = (char *) malloc (strlen (line) + 1 );
Strcpy (str1, line );

Printf ("String1 :");
Memset (lines, 0,100 );
Gets (line );

Str2 = (char *) malloc (strlen (line) + 1 );
Strcpy (str2, line );

Printf ("n :");
Scanf ("% d", & n );
If (n-1 <strlen (str1 ))
{
Str1 = (char *) realloc (str1, strlen (str1) + strlen (str2) + 1 );
Strncat (str1, str2, n );
Printf ("after cat, % s \ n", str1 );
}
Else
{
Printf ("out of bound \ n ");
}

Fflush (stdin );
Printf ("String3 :");
Memset (lines, 0,100 );
Gets (line );

Str3 = (char *) malloc (strlen (line) + 1 );
Strcpy (str3, line );

P = strstr (str1, str3 );
If (p)
{
Printf ("Position: % d \ n", p-str1 );
}
Else
{
Printf ("m :");
Scanf ("% d", & m );

Str4 = (char *) malloc (strlen (str1) + strlen (str2) + 1 );
Memset (str4, 0, strlen (str1) + strlen (str2) + 1 );
If (m-1 <strlen (str1 ))
{
Strncpy (str4, str1 m-1 );
Strcat (str4, str3 );
Strcat (str4, str1 + m-1 );
Printf ("New string: % s \ n", str4 );
}
Else
{
Printf ("out of bound \ n ");
}
}
}... Remaining full text>

C # string operations

If you want to write so many words, check the reference document directly. I can only answer you. This is too simple, because you are too lazy, so I am too lazy to write code for you.