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File Input Output

in C++

~cpp 
#include <fstream>
using namespace std;

int main()
{
	ifstream fin("input.txt"); // fin๊ณผ input.txtฅผ —ฐ๊ฒฐ 
	ofstream fout("output.txt"); // fout๊ณผ output.txtฅผ —ฐ๊ฒฐ

	int a,b;
	fin >> a >> b; // cinœผกœ ™”—„œ ž… ฅฐ›Š”‹ค, fin€ —ฐ๊ฒฐœ ŒŒผกœ€„ฐ ž… ฅฐ›Š”‹ค.
	fout << a+b << endl; // coutœผกœ ™”œผกœ ถœ ฅ•œ‹ค, fout€ —ฐ๊ฒฐœ output.txt— a+bฅผ ถœ ฅ
	return 0;
}

input.txt
~cpp 
3 8

 € ”„กœ๊ทธžจ„ ‹ค–‰•˜ output.txt๊ฐ€ ƒ๊ธฐ„œ 11 ๊ทธ •ˆ— จง„‹ค.

Python

~cpp 
fin = file('input.txt')
fout = file('output.txt.','w')

a,b=[int(i) for i in fin.read().split()]
print >> fout,(a+b) #˜น€ fout.writeline( str(a+b)+'n' )

fin.close()
fout.close()

input.txt
~cpp 
3 8

 € ”„กœ๊ทธžจ„ ‹ค–‰•˜ output.txt๊ฐ€ ƒ๊ธฐ„œ 11 ๊ทธ •ˆ— จง„‹ค.

Java

~cpp 
try { 
String inputString; 
InputStreamReader isr = new InputStreamReader(new FileInputStream(fileName)); 
BufferedReader br = new BufferedReader(isr); 
while((inputString = br.readLine()) != null) { 
      buf = buf + inputString ; 
      buf = buf + "r" ; 
      buf = buf + "n" ; 
       {} br.close(); 
} 
catch (IOException e) 
 System.out.println("Error : "+ e.toString()); {}
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