String concatenation: Difference between revisions
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(GNU Forth) |
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<pre>hello literal |
<pre>hello literal |
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hello literal</pre> |
hello literal</pre> |
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=={{header|Forth}}== |
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{{works with|GNU Forth}} |
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s" hello" pad place |
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pad count type |
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s" there!" pad +place \ +place is called "append" on some Forths |
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pad count type |
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=={{header|Haskell}}== |
=={{header|Haskell}}== |
Revision as of 00:18, 18 December 2008
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
<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>
- include <stdlib.h>
- 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>
- 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
Forth
s" hello" pad place pad count type s" there!" pad +place \ +place is called "append" on some Forths pad count type
Haskell
import System.IO s = "hello" s1 = s ++ " literal" main = do putStrLn (s ++ " literal") putStrLn s1
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
JavaScript
<javascript>var s = "hello" print(s + " there!") </javascript>
Logo
make "s "hello print word :s "| there!|
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 $s1 . "\n";</perl>
UNIX Shell
s="hello" echo "$s literal" s1="$s literal" echo $s1