scala programming tutorial

Network Programming 4-video learning notes for bixiangdong java basic tutorial, 4-bixiangdong Day24 06 custom browser-Tomcat server07 custom graphic interface browser-Tomcat server08 URL-URLConnection09 tips10 domain name resolution 06 custom browser-Tomcat server Client: custom Server: Tomcat1 import java.net. *; 2 import java. io. *; 3 class MyIE 4 {5 public static void main (String [] args) throws Excep

(9999)//client own port because UDP is not a connection-oriented Ds.send (DP);d s.close ();}}　　TESTUDP Clientimport Java.net.*;import java.io.*; public class Testudpclient{public static void Main (String args[]) throws exception{long n = 10000L; Bytearrayoutputstream BAOs = new Bytearrayoutputstream ();D ataoutputstream dos = new DataOutputStream (BAOs); Dos.writelong (n); byte[] buf = Baos.tobytearray ();//convert Long data into a character array, input System.out.println (buf.length); Datagra

JavaSocket: A secret class in Java nbsp; Socket programming, Javascript tutorial Introduction The Java platform implements Socket in the java.net package. In this article, we will use the following three classes in the Java.net package to work:URLConnection Socket ServerSocket There are more classes in the java.net package, but these are the most common ones. Let's start with URLConnection, this class prov

This article mainly introduces the exception handling tutorial in Python programming. It is the basic knowledge in getting started with Python. For more information, see 1. Exception OverviewIn terms of software, errors are syntactically or logically. When python detects an error, the interpreter will point out that the current stream can no longer be executed, and an exception occurs. Exceptions are divide

As we said before, the method that declares the method name of "__" in the class (provided to us by PHP) is the method that executes automatically at a certain time under different circumstances, and the "__tostring ()" method is also automatically called, which is called automatically when the object reference is directly exported. We said before that the object reference is a pointer, for example: "$p =new person ()", $p is a reference, we can not use the Echo Direct output $p, this will outpu

blank linemembers=[T,s] forMemberinchMembers:member.tell ()Results:( Initialized SchoolMember:Mrs.Shrividya) (Initialized Teacher:Mrs.Shrividya) (Initialized schoolmember:swaroop) (Initialized Student:swaroop) Name:"Mrs.shrividya"Age:" +"Salary:"30000"Name:"Swaroop"Age:" A"Marks:" the"Note: in order to use inheritance, the name of the base class as a tuple follows the class name when the class is defined. The __init__ method of the base class is specifically called with the self variable, so th

Controller";Release the mouse Select button appears "gaspedalpressed"; Pick it up.property settings switch to attributes on the select Custom under Type; Select Gaspedalsmall.png under the BackgroundSelect Controls click the top menu bar editor->size to Fit ContentJoin Uiimageview, traffic lights picturesSelect: Tools--Library; Drag a imageView from the Library display menu to the View Controller SceneIn the main viewport or File window; click ImageViewSelect: Tools-Inspector; Select Redlightsm

The article at the beginning of the list of so many contact, it will inevitably make you feel a bit of ad's meaning, but can not be questioned, there is really so little performance to ^_^, although sometimes too meticulous will be said mother, but fortunately this meticulous for programming, or pretty good! From silently to others ask how to learn PHP began, to a lot of people again to ask silently how to learn PHP, regardless of silently is novice,

I always wanted to learn Java because of curiosity and free. But because it is not used at work, and it is too high in hardware configuration, it is only occasionally used to learn. I have found tutorials and articles on the Internet, but I have not learned anything. I also bought more than 700 pages of Java j2se 5 edition reference book, because it is too thick to read. Finally, I bought a "Java programming practice

#!/bin/bash. Hellofunset"now going to thefuction Hello" hello# here will output the message:. /"back from thefunction Hello"6.6. function return Status valueExample 1:#!/bin/bashfunction Hello () { "Hello, today is ' date '" return 0 now going to thefunction Hellohello# next to output the return status value, with $? represents echo $? "back from thefunction Hello"Example 2: #!/bin/bashfunction Hello () {echo hello, today is ' date ' " return 0 }echo " now going to the functio

(Result,"%.3s%.3s%3d%.2d:%.2d:%.2d%d\n", Wday_name[timeptr-Tm_wday], mon_name[timeptr-Tm_mon], timeptr->tm_mday, timeptr->Tm_hour, Timeptr->tm_min, timeptr->Tm_sec,1900+ timeptr->tm_year); return result;}The doubt is lifted, and you can see that CTime returns a static local char array.System call Lseek Change Open file location:Handling Errors in system callsDetermine the type of error errno.Display error message Perror:The ls-a option lists hidden files:How to write LS:Stat gets file attribute

The title describes the sum of the diagonal elements of a 3x3 matrix. Input matrix output main diagonal sub-diagonal element and sample input1 2 31 1 13 2 1Sample output3 7Hint Source#includeint main(){int a[9];int x,y,i;for(i=0;iscanf("%d",a+i);x=a[0]+a[4]+a[8];y=a[2]+a[4]+a[6];printf("%d %d\n",x,y);} 1025:c Language Programming Tutorial (third Edition) after class exercise 7.3

The title describes a ball from the M-meter height of the free fall, each landing after the return of the original height of half, and then fall. How high does it bounce when it lands on nth time? How many meters are there? Leave two-bit decimal input m n output how high does it bounce when it lands on nth time? How many meters are there? Keep two decimal places separated by spaces and put in one line sample input1000 5Sample output31.25 2875.00Hint Source#includeint main(){int m,n,i;float h,l=0

Programming | Tutorial 2.5 event handler function said the usual events, in terms of two different ways of dealing with events. The event-handling code described earlier is added like this: First, select the object that will capture the event (the movie clip instance or button), and then open the script panel and write the "on event name" code. For example, if we want a movie clip instance to capture the

The title description has a fractional sequence: 2/1 3/2 5/3 8/5 13/8 21/13 ... The sum of the first n items of this sequence is calculated, and two decimal places are reserved. Input n output series top N and sample input10Sample output16.481#include"stdio.h"2 3 intMainintargcChar Const*argv[])4 {5 6 intN, M =2, n =1, I;7 floats =0;8scanf"%d", N);9 for(i =0; i )Ten { One intT; As + = (float) m/N; -t =m; -m = n +m; then =T; - } - -printf"%.2f\n", s); + return 0;

The title describes the sum of the following three numbers, preserving the 1~b of the sum of the squares and 1~c of the 2-bit decimal 1~a and the input a B c output 1+2+...+a + 1^2+2^2+...+b^2 + 1/1+1/2+...+1/c Sample input100 50 10Sample output47977.931 intMainintargcChar Const*argv[])2 {3 4 intA, B, C, I;5 floatS1 =0, S2 =0, S3 =0;6 7scanf"%d%d%d", a, b, c);8 9 for(i =1; I )Ten { OneS1 + =i; A } - - for(i =1; I ) the { -S2 + = i *i; - } - + for(i =1

=1; J ) {Putchar ('*'); if(J! =i) {Putchar ('_'); }} putchar ('\ n'); }}Results:Program Two:Function Description: Enter lines of text, counting the number of lines, words, and characters.#include Program Three:Function Description: Output monthly calendar of the current month.#include Main () {intN, I, J; scanf_s ("%d", N); if(n = =7) n=0; ElseN=N; printf ("Sun Mon Tue Wed Tur Fri sat\n"); for(i =1; I ) {printf ("%4c",' '); } for(j =1; J -; J + +){ if((j + N)%7==0) {printf ("%4d",

The title description enters two integers, asking them to divide the remainder. Use a macro with parameters to implement, program. Input a b two number output A/b remainder sample input3 2Sample output11#include 2 #defineDivide (A, b) res = a% B;3 intMainintargcChar Const*argv[])4 {5 intA, B, res;6scanf"%d%d", a, b);7 8 Divide (A, b);9 Tenprintf"%d\n", res); One return 0; A}1037:c Language Programming Tuto