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sudo apt-get install sun-java6-jdk
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sudo update-alternatives --config java
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There are 2 alternatives which provide `java'.
Selection Alternative
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1 /usr/lib/jvm/java-6-openjdk/jre/bin/java
2 /usr/lib/jvm/java-6-sun/jre/bin/java
Press enter to keep the default[*], or type selection number:
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CLASSPATH=.:/usr/lib/jvm/java-6-sun/lib
JAVA_HOME=/usr/lib/jvm/java-6-sun
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$sudo gedit /etc/jvm
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1. build vserv-tcpip-0.9.2-src
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package sort;
import java.util.Random;
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package Demo;
// ÆÕͨ·ºÐÍ
class Point<T> { // ´Ë´¦¿ÉÒÔËæ±ãд±êʶ·ûºÅ£¬TÊÇtypeµÄ¼ò³Æ
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public void setVar(T var) { // ÉèÖõÄÀàÐÍÒ²ÓÉÍⲿ¾ö¶¨
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package Demo;
// Java·ºÐÍ·½·¨
class Demo26 {
public <T> T fun(T t) { // ¿ÉÒÔ½ÓÊÕÈÎÒâÀàÐ͵ÄÊý¾Ý
return t; // Ö±½Ó°Ñ²ÎÊý·µ»Ø
}
}
public class GenericsDemo26 {
public static void main(String args[]) {
Demo26 d = new Demo26(); // ʵÀý»¯Demo¶ÔÏó
String str = d.fun("it"); // ´«µÝ× ......