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public class Main {
public static void main(String[] args) {
System.out.println("main BEGIN");
Host host = new Host();
Data data1 = host.request(10, 'A');
Data data2 = host.request(20, 'B');
Data data3 = host.request(30, 'C');
System.out.println("main otherJob BEGIN");
try {
Thread.sleep(200);
} catch (InterruptedException e) {
}
System.out.println("main otherJob END");
System.out.println("data1 = " + data1.getContent());
System.out.println("data2 = " + data2.getContent());
System.out.println("data3 = " + data3.getContent());
System.out.println("main END");
}
}
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public class Host {
public Data request(final int count, final char c) {
System.out.println("request(" + count + ", " + c + ") BEGIN");
// (1) ½¨Á¢FutureDataµÄʵÌå
final FutureData future = new FutureData();
// (2) ΪÁ˽¨Á¢RealDataµÄʵÌ壬Æô¶¯ÐµÄÏß³Ì
new Thread() {
public void run() {
//ÔÚÄäÃûÄÚ²¿ÀàÖÐʹÓÃcount¡¢future¡¢c¡£
RealData realdata = new RealData(count, c);
future.setRealData(realdata);
}
}.start();
System.out.println("request(" + count + ", " + c + ") END");
// (3) È¡»ØFutureDataʵÌ壬×÷Ϊ´«»ØÖµ
return future;
}
}
host("µ°¸âµê")ÔÚ½Óµ½ÇëÇóºó£¬ÏÈÉú³ÉÁË“Ìá»õµ¥”FutureDataµÄʵÀýfuture£¬È»ºóÃüÁ°¸âʦ¸µ”RealDataÈ¥×öµ°¸â£¬realdataÏ൱ÓÚÆð¸öÏß³
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2009-04-14 15:37
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import java.sql.Connection;
import java.sql.DatabaseMetaData;
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public static void main(String[] args) {
int result = 1;
for (int i = 1; i <= 100; i++) {
result *= i;
}
System.out.println(result);
}
}
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