String concatenation: Difference between revisions

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(perl)
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return 0;
return 0;
}</objc>
}</objc>

=={{header|Perl}}==
<perl>#! /usr/bin/perl
my $s = "hello";
print $s . " literal" . "\n";
my $s1 = $s . " literal";
print $s1 . "\n";</perl>

Revision as of 23:45, 17 December 2008

Task
String concatenation
You are encouraged to solve this task according to the task description, using any language you may know.

Set a string variable equal to any text value. Print it to the console concatenated with a string literal. Create a new string variable whose value is the other variable concatenated with a string literal. Print this new variable.

BASIC

Works with: QuickBasic version 4.5

<qbasic>s$ = "hello" print s$;" literal" 'or s$ + " literal" s2$ = s$ + " literal" print s2$</qbasic> Output:

hello literal
hello literal

C

<c>#include <stdio.h>

  1. include <stdlib.h>
  2. include <string.h>

char *sconcat(char *s1, char *s2) {

 char *s0 = malloc(strlen(s1)+strlen(s2)+1);
 sprintf(s0, "%s%s", s1, s2);
 return s0;

}

int main() {

  char *s = "hello";
  char *s2;
  
  printf("%s literal\n", s);
  /* or */
  printf("%s%s\n", s, " literal");
  
  s2 = sconcat(s, " literal");
  puts(s2);
  free(s2);

}</c>

C++

<cpp>#include <string>

  1. include <iostream>

int main() {

  std::string s = "hello";
  std::cout << s << " literal" << std::endl;
  std::string s2 = s + " literal";
  std::cout << s2 << std::endl;
  return 0;

}</cpp> Output:

hello literal
hello literal

Java

<java>public class Str{

  public static void main(String[] args){
     String s = "hello";
     System.out.println(s + " literal");
     String s2 = s + " literal";
     System.out.println(s2);
  }

}</java> Output:

hello literal
hello literal

Objective-C

<objc>#import <Foundation/Foundation.h>

int main() {

 NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
 NSString *s = @"hello";
 printf("%s%s\n", [s UTF8String], " literal");
 
 NSString *s2 = [NSString stringWithFormat:@"%@%@", s, @" literal"];
 puts([s2 UTF8String]);
 /* or */
 NSMutableString *s3 = [NSMutableString stringWithString: s];
 [s3 appendString: @" literal"];
 puts([s3 UTF8String]);
 
 [pool release];
 return 0;

}</objc>

Perl

<perl>#! /usr/bin/perl my $s = "hello"; print $s . " literal" . "\n"; my $s1 = $s . " literal"; print $s1 . "\n";</perl>