Reader
, Writer
$B$N1~MQ(Blast modified: Sep./09th/2002
$BJ8;z%G!<%?$NF~=PNO$O(B BufferedReader
$B$H(B BufferedWriter
$B$rMQ$$$^$9!#$3$l$i$OJ8;z%9%H%j!<%`$r%i%C%T%s%0$9$k$3$H$GF/$-$^$9!#$=$NJ8;z%9%H%j!<%`$O%3%s%9%H%i%/%?$K0z?t$H$7$FM?$($^$9$,!"(B Reader
/Writer
$B%/%i%97?$,%3%s%9%H%i%/%?$N0z?t$KDj5A$5$l$F$$$^$9!#$3$l$i$N%/%i%9$r7Q>5$7$?%/%i%97?$N%9%H%j!<%`$,0z?t$H$7$F5v$5$l$k$3$H$K$J$j$^$9$,!"$$$m$$$m$J%Q%?!<%s$,9M$($i$l$^$9!#0J2<$G$O$=$NE@$KCm0U$7$F$/$@$5$$!#(B
$B%/%i%9L>(B | $B%3%s%9%H%i%/%?$N0z?t$N7?$K5v$5$l$k%/%i%9$N0lNc(B |
---|---|
BufferedReader | BufferedReader, CharArrayReader, FilterReader, InputStreamReader, PipedReader, StringReader |
BufferedWriter | BufferedWriter, CharArrayWriter, FilterWriter, OutputStreamWriter, PipedWriter, PrintWriter, StringWriter |
$BSystem.in $B$+$iFI$_9~$s$@J8;zNs$r!"I8=`=PNO(B System.out
$B$K=q$-9~$_$^$9!#(B
System.in
$B$r(B InputStreamReader
$B$G%i%C%W$7$FJ8;z%9%H%j!<%`$KJQ49$7!"$=$l$r(B BufferedReader
$B$G%i%C%T%s%0$7$^$9!#F1MM$K!"(B System.out
$B$r(B OutputStreamWriter
$B$G%i%C%W$7!"$3$l$r(B BufferedWriter
$B$G%i%C%T%s%0$7$^$9!#(B
import java.io.*; class StdIO { public static void main(String[] args) { BufferedReader bin = new BufferedReader(new InputStreamReader(System.in)); BufferedWriter bout = new BufferedWriter(new OutputStreamWriter(System.out)); String str=""; try { for (int i=1 ;true ;i++) { System.out.print("$B9T(B> "); str=bin.readLine(); if (str.equals("x")) { break; } bout.write("\t"+i+": "); bout.write(str); bout.newLine(); } bout.flush(); } catch (IOException e) { System.out.println(e); } } }
$B9T(B>
"$B$KB3$$$FJ8;zNs$rF~NO$9$k$H!":G8e$K=PNO$7$^$9!#(Bx
" $B$rF~NO$9$k$H7+$jJV$7$rC&=P$7$^$9!#(Bflush()
$B$N0LCV$r9)IW$7$^$7$?!#(BC:\java>javac StdIO.java C:\java>java StdIO $B9T(B> pride $B9T(B> greed $B9T(B> lust $B9T(B> anger $B9T(B> gluttony $B9T(B> envy $B9T(B> sloth $B9T(B> x 1: pride 2: greed 3: lust 4: anger 5: gluttony 6: envy 7: sloth
IODemo.java
:
class IODemo { public static void main(String[] args) { java.io.BufferedReader bin = new java.io.BufferedReader(new java.io.InputStreamReader(System.in)); try { while (true) { System.out.print("$BH>7B!'(B"); String str = bin.readLine(); double r = Double.parseDouble(str); System.out.println("$B1_<~!'(B" + 2.0 * Math.PI * r); } } catch (NumberFormatException ex) { try { bin.close(); } catch (java.io.IOException e) { e.printStackTrace(); } System.out.println("$B=*N;(B"); } catch (java.io.IOException ex) { try { bin.close(); } catch (java.io.IOException e) { e.printStackTrace(); } return; } } }
Java$B$N%G!<%?F~=PNO$O!"%9%H%j!<%`$H8F$P$l$k%*%V%8%'%/%H$H$7$F07$$$^$9!#F~NO%9%H%j!<%`$H8F$P$l$k%*%V%8%'%/%H$+$i%G!<%?$rFI$_9~$_!"F1$8$/=PNO%9%H%j!<%`$H8F$P$l$k%*%V%8%'%/%H$rDL$7$F%G!<%?$r=PNO$7$^$9!#(B
$B$3$N%5%s%W%k$G$O!"I8=`F~NO%9%H%j!<%`(BSystem.in$B$r(BInputStreamReader$B$N%3%s%9%H%i%/%?0z?t$K$H$C$F$$$^$9!#$3$l$r!V%i%C%W$9$k!W$H8F$S$^$9!#(BSystem.in$B$r(BInputStreamReader$B$G%i%C%W$7!"99$K(BBufferedReader$B$G%i%C%W$7$F$$$^$9!#(B
$BF~=PNO%9%H%j!<%`$O!"MQ$,L5$/$J$l$P%/%m!<%:$9$kI,MW$,$"$j$^$9!#$3$3$G$O!"(BBufferedReader$B%*%V%8%'%/%H(Bbin$B$r%/%m!<%:$7$F$$$^$9!#$3$l$r%/%m!<%:$9$l$P!"%i%C%W$5$l$F$$$k(BInputStreamReader$B%*%V%8%'%/%H$NF1;~$K%/%m!<%:$5$l$^$9!#(B
$B%G!<%?$NF~=PNO$G$O!"(Bjava.io.IOException$B$,H/@8$7!"$3$l$O(Bjava.lang.Exception$B$ND>@\$N%5%V%/%i%9$G$"$j!"Nc30=hM}$,I,?\$G$9!#$3$3$G$O(Btry catch$B9=J8$G=hM}$7$^$7$?!#y$5$l$^$9!#(Bmain()$B%a%=%C%I$O(BJavaVM$B$K$h$C$F%"%W%j%1!<%7%g%s5/F0;~$K:G=i$K8F$P$l$F$*$j!"8F$S=P$785$N%a%=%C%I$OB8:_$7$J$$$N$G!"C/$b=hM}$7$J$$;v$K$J$j$^$9!#(B
class IODemo { public static void main(String[] args) throws java.io.IOException { java.io.BufferedReader bin = new java.io.BufferedReader(new java.io.InputStreamReader(System.in)); try { while (true) { System.out.print("$BH>7B!'(B"); String str = bin.readLine(); double r = Double.parseDouble(str); System.out.println("$B1_<~!'(B" + 2.0 * Math.PI * r); } } catch (NumberFormatException ex) { bin.close(); System.out.println("$B=*N;(B"); } } }
$B$3$3$^$G$O$"$($F40A48BDjL>$G%/%i%9$r;XDj$7$F$$$^$7$?$,!"(Bjava.IO
$B%Q%C%1!<%8$N%/%i%9$r(Bimport$B$7$F$*$1$P!"$@$1$G;XDj$G$-$^$9!#(B
import java.io.*; class IODemo { public static void main(String[] args) throws Exception { BufferedReader bin = new BufferedReader(new InputStreamReader(System.in)); try { while (true) { System.out.print("$BH>7B!'(B"); String str = bin.readLine(); double r = Double.parseDouble(str); System.out.println("$B1_<~!'(B" + 2.0 * Math.PI * r); } } catch (NumberFormatException ex) { bin.close(); System.out.println("$B=*N;(B"); } } }
$B%3%s%Q%$%k!? $B0J2<$NNc$O!"0zMQ85$N%U%!%$%k$+$iFI$_9~$s$@J8;zNs$r!">.J8;z$KJQ49$7$F=PNO$7D>$9$b$N$G$9!#(B $B%3%^%s%I%i%$%s$+$i0z?t$rFs$D $B%3%^%s%I%i%$%s0z?t$r(B
>javac IODemo.java
>java IoDemo
$BH>7B!'(B1
$B1_<~!'(B6.283185307179586
$BH>7B!'(B0.5
$B1_<~!'(B3.141592653589793
$BH>7B!'(B
$B=*N;(B
$B%U%!%$%k$KBP$9$kF~=PNO(B
import java.io.*;
class L2s {
public static void main(String[] args) {
try {
BufferedReader br
= new BufferedReader(new FileReader(new File(args[0])));
BufferedWriter bw
= new BufferedWriter(new FileWriter(new File(args[1])));
String str;
while ((str=br.readLine()) != null) {
//$B>.J8;z$KJQ49(B
String strl = str.toLowerCase();
//$B%P%C%U%!$X=PNO(B
bw.write(strl);
bw.newLine();
}
//$B=*N;=hM}(B
bw.flush();
br.close();
bw.close();
} catch (IOException e) {
System.out.println(e);
}
}
}
File
$B%/%i%9$N%3%s%9%H%i%/%?0z?t$KM?$(!"$3$l$r(B FileReader
$B%/%i%9$N%3%s%9%H%i%/%?0z?t$KM?$(!"$3$l$r(B BufferdeReader
$B%/%i%9$G%i%C%W$7$F$$$^$9!#(BWriter
$B$K$D$$$F$bF1$8$h$&$J
Copyright © 2002 SUGAI, Manabu. All Rights Reserved.
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