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Îâ 玥ò« (wuyuehao@cn.ibm.com), Èí¼þ¹¤³Ìʦ, IBM
2006 Äê 10 ÔÂ 30 ÈÕ
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import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
public class Find5Words {
public static void main(String[] args) throws IOException {
String result = "";
String line = null;
int num = 0;
FileReader fr = new FileReader("filename");
BufferedReader br = new BufferedReader(fr);
while ((line = br.readLine()) != null) {
result += line;
}
br.close();
fr.close();
String[] s = result.split(" ");
for (int i = 0; i < s.length; i++) {
if (s[i].matches("^\\w{5}$")) {
num++;
}
}
System.out.println(num);
}
}
ÔÙ¿´¿´ Perl ÓïÑÔʵÏÖͬÑù¹¦ÄܵĴúÂ룺
open FILE, "<filename ";
while (<FILE>) {
for (split) {
$num++ if /^\w{5}$/
}
}
print $num;
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*/
function extend(target, params) {
if (!target) {
target = {};
}
for (var prop in params) {
target[prop] = params[prop];
}
r ......
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public class Father
{
public void speak()
&nb ......
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JDKµÄ°²×°Â·¾¶
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±äÁ¿Ãû JAVA_HOME
±äÁ¿ÖµÊ¾Àý D:\Program Files\Java\jdk1.6.0;
ËÑË÷ÀàµÄĿ¼
------------
±äÁ¿Ãû CLASSPATH
±äÁ¿ÖµÊ¾Àý D:\Program Files\Java\jdk1.6.0\lib\tools.jar;
D:\Program Files\Java\jdk1.6.0\lib\dt.jar;
JdkµÄbinĿ¼
------------
±äÁ¿Ãû PATH(Ò ......