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URI ÊÇ×ÊÔ´±êʶ·û¡£¾ÍÊÇÏ൱ÓÚÒ»¸öÈ˵ļÒͥסַ¡£
URLºÍURIÀàËÆ¡£ÊÇ×ÊÔ´¶¨Î»µÄ¡£ ºÍURI²»Í¬µÄ¾ÍÊÇURLÌṩÁË»ñÈ¡¶«Î÷µÄ·½·¨¡£
        java.io.InputStream l_urlStream;
       // Ò²¿ÉÒÔ»»³Éuri,È»ºóµ÷ÓÃuri.toURL
        java.net.URL l_url = new java.net.URL(
                "http://www.google.cn");
       java.net.HttpURLConnection l_connection = (java.net.HttpURLConnection) l_url
                .openConnection();
        System.out.println(l_connection.getContentType());
        l_connection.connect();
        l_urlStream = l_connection.getInputStream();


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java homework

ʹÓÃjava.lang.MathÀ࣬Éú³É500¸ö0~99µÄËæ»úÊý£¬½øÐÐÅÅÐòÊä³ö£¬²¢Çó×î´óÖµ¡¢×îСֵ¡¢Æ½¾ùÖµ¡¢±ê×¼²î¡¢·½²î¡¢¾ù·½²î£»
import java.lang.Math;
import java.util.Arrays;
public class Main {
public static void main(String args[]) {
//create random
int [] data =new int[500];
double sum = 0, avg =0; ......

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[ת]Does Java pass by reference or pass by value?

http://www.javaworld.com/javaworld/javaqa/2000-05/03-qa-0526-pass.html
Does Java pass by reference or pass by value?
Why can't you swap in Java?
By Tony
Sintes, JavaWorld.com, 05/26/00

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