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¡¡¡¡CharWriteTest.java
import java.io.*;
class CharWriteTest {
public static void main(String args[]) {
try {
FileOutputStream fos = new FileOutputStream("chartest");
DataOutputStream dos = new DataOutputStream(fos);
dos.writeUTF("ABCDE");
dos.writeUTF("¤¢¤¤¤¦¤¨¤ª");
} catch (Exception e) {
e.printStackTrace();
}
}
}
|
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C:\java_test>java CharWriteTest
C:\java_test>type chartest
ABCDE åá¤å¡äåá¬å¡èåá
|
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¡¡Java ¤Ç¤Ïʸ»ú¤ÎÆþ½ÐÎϤΤ¿¤á¥¹¥È¥ê¡¼¥à¤È¤·¤Æ Writer / Reader ¤È¤¤¤¦£²¤Ä¤Î¥¯¥é¥¹¤¬ÍÑ°Õ¤µ¤ì¤Æ¤¤¤Þ¤¹¡£¤³¤ì¤é¤Î¥¯¥é¥¹¤Ï¼Â¹ÔÃæ¤Î£Ï£Ó¤¬»È¤Ã¤Æ¤¤¤ëʸ»ú¥³¡¼¥É¤ÈJava¤¬Ê¸»ú¤ò°·¤¦¤È¤¤Ë»È¤Ã¤Æ¤¤¤ë
Unicode ¤ÎÊÑ´¹¤â¹Ô¤¤¤Þ¤¹¡£
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¡¡¤Ç¤Ï Writer ¥¯¥é¥¹¤ò»È¤Ã¤Æ¤ß¤Þ¤¹¡£Writer ¥¯¥é¥¹¤Ïʸ»ú½ÐÎϤΤ¿¤á¤Î¥¹¥È¥ê¡¼¥à¤È¤·¤Æ»È¤¦¥¯¥é¥¹¤ÎºÇ¾å°Ì¤Î¥¯¥é¥¹¤Ç¡¢¤³¤ì¤À¤±¤Ç¤â»È¤¦¤³¤È¤¬¤Ç¤¤Þ¤¹¤¬¡¢Writer ¥¯¥é¥¹¤Î¥µ¥Ö¥¯¥é¥¹¤ÎÊý¤¬»È¤¤¾¡¼ê¤¬Îɤ¤¤â¤Î¤¬¤¢¤ê¤Þ¤¹¡£
¡¡¤³¤³¤Ç¤Ï¤Þ¤º¡¢¥Õ¥¡¥¤¥ë¤Ë½ñ¤¹þ¤à¤¿¤á¤Î¥¯¥é¥¹¤ò¾Ò²ð¤·¤Þ¤¹¡£java.io.FileWriter ¤È¤¤¤¦¥¯¥é¥¹¤Ç¤¹¡£¤³¤Î¥¯¥é¥¹¤Ï FileOutputStream ¤È¤¤¤¦¤Û¤È¤ó¤ÉƱ¤¸»È¤¤Êý¤¬¤Ç¤¤Þ¤¹¡£FileWriter ¤Î¥³¥ó¥¹¥È¥é¥¯¥¿¤Ï¡¢
FileWriter(File file) throws IOException
FileWriter(String fileName) throws IOException
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void write(String str) throws IOException
¡¡¡¡WriterTest.java
import java.io.*;
class WriterTest {
public static void main(String args[]) {
try {
FileWriter fw = new FileWriter("writertest");
fw.write("ABCDE");
fw.write("¤¢¤¤¤¦¤¨¤ª");
fw.flush() // ½ñ¤¹þ¤Þ¤ì¤Ê¤¤¾ì¹ç¤Ïflush¤·¤Þ¤¹¡£
} catch (Exception e) {
e.printStackTrace();
}
}
}
|
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C:\java_test>java WriterTest
C:\java_test>type writertest
ABCDE¤¢¤¤¤¦¤¨¤ª
|
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¡¡PrintWriter ¤Î¥³¥ó¥¹¥È¥é¥¯¥¿¤Ï
PrintWriter(Writer out)
PrintWriter(OutputStream out)
¡¡¤Î¤è¤¦¤Ê¤â¤Î¤¬¤¢¤ê¤Þ¤¹¡£¤½¤·¤Æ½ñ¤¹þ¤ß¤è¤¦¤Î¥á¥½¥Ã¥É¤Ï print( ) ¤È println( ) ¤¬¤¢¤ê¤Þ¤¹¡£¤³¤Î£²¤Ä¤Î¥á¥½¥Ã¥É¤Ï System.out.print( ) ¤ä System.out.println( ) ¤ÈÁ´¤¯Æ±¤¸»È¤¤Êý¤Ç¤¹¡£
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¡¡¡¡PrintTest.java
import java.io.*;
class PrintTest {
public static void main(String args[]) {
try {
FileWriter fw = new FileWriter("printtest");
PrintWriter out = new PrintWriter(fw);
out.print("ABCDE");
out.print("¤¢¤¤¤¦¤¨¤ª");
out.flush();
} catch (Exception e) {
e.printStackTrace();
}
}
}
|
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