l**t
发帖数: 452 | 1 urgent!
how to output the first 5 letters to a file from a 20-letter string?
thank you!!! |
xt
发帖数: 17532 | 2
OutputStream out = ...;
String str = ...;
byte[] b = str.getBytes();
out.write( b, 0, 5 );
【在 l**t 的大作中提到】
: urgent!
: how to output the first 5 letters to a file from a 20-letter string?
: thank you!!!
|
c*****t
发帖数: 1879 | 3 why not using substring?
【在 xt 的大作中提到】
:
: OutputStream out = ...;
: String str = ...;
: byte[] b = str.getBytes();
: out.write( b, 0, 5 );
|
m**c
发帖数: 90 | 4
String str20 = ...;
Writer writer = new BufferedWriter(new FileWriter(new File(...)));
write.write (str20, 0, 5); // cannot remember it should 4 or 5
writer.close();
【在 c*****t 的大作中提到】
: why not using substring?
|
st
发帖数: 1685 | 5
~~~~~~~~no need to
nest one more bah.
BufferedWriter w=new BufferedWriter(new FileWriter("filename")); should work.
【在 m**c 的大作中提到】
:
: String str20 = ...;
: Writer writer = new BufferedWriter(new FileWriter(new File(...)));
: write.write (str20, 0, 5); // cannot remember it should 4 or 5
: writer.close();
|
c*****t
发帖数: 1879 | 6 ffdt, use
str20.substring (0, 5)
【在 m**c 的大作中提到】
:
: String str20 = ...;
: Writer writer = new BufferedWriter(new FileWriter(new File(...)));
: write.write (str20, 0, 5); // cannot remember it should 4 or 5
: writer.close();
|
