Step 2: compile Java code
Next, we need to compile the Java code into bytecode.
One way to do this is to use the Java compiler javac provided with the SDK.
The command used to compile Java code into bytecode is:
CD TestJavac jni_javacallc_test.java
If the above Code is written in the eclipse environment, the above
First, let's take a look at how to create a Java object in C/C ++: There are two methods in JNIEnv to create a Java object:
Method 1:
Jobject NewObject (jclass clazz, jmethodID methodID ,....):
Parameter description:
Clazz: This is very simple. It is the Class Object of the Java
From C + + to Java, and then back to C + + from Java, today finally have the opportunity to understand the connection between Java, C + + bridge--jni. Ha ha! Share it!
First, IntroductionJNI is a shorthand for
Address: http://blog.csdn.net/loseleo/article/details/5858862
First, I want to talk about calling Java in C, because there is no detailed information on the Internet. Secondly, it is not long before I develop an android application. For Java errors, please forgive me!
I should not go into details about how to configure the ndk environment. There are many prob
Java source code to C # five best toolsChszs, reprint need to indicate. Blog home:Http://blog.csdn.net/chszsFor some purposes, you may encounter the task of converting Java source code into C # source code. If you are understanding the source code, and then hand-translated, it is certainly very low efficiency. In view
State machine programming ideas (2): Delete Code comments (currently C/C ++ and Java are supported), programming ideas javaPreface
Sometimes we need to delete comments to keep the information confidential or simply read the code.
I have considered regular expressions before, but it is quite troublesome to implement them. The state machine can classify multiple si
JAVA concurrent programming J. U. C learning summary, java concurrent programming j. u. cPreface
After learning J. U. C for a while, I plan to make a summary. I personally feel that the summary is very important. Otherwise, I always feel that the knowledge is scattered.
If you have any mistakes, please correct them and
Since C ++ is almost forgotten, I have switched to the latest C ++ Primer version and intend to learn more about the C ++ language. The fifth version of C ++ Primer has been "restructured". It integrates the C ++ 11 standards and lists them all in the book.
In the course of
)) { printf ("Error:connection failed!\n"); Return } mysql_query (connection, "Set names GBK"); result = mysql_query (connection, SQL); if (result) {printf ("Error:query failed!\n"); Mysql_close (connection); Return } Result_pointer = Mysql_store_result (connection); if (result_pointer) {row = Mysql_num_rows (Result_pointer); for (i = 1; i The following is the output of the program, which indicates that the code is functioning correctly.Perhaps because
a solution based on Windows DNA on a Windows platform
Use the most or VB do DCOM instead of VC ATL do DCOM, because of C + + although efficient but too easy
Error, if not very careful to free memory NT will soon be under-resourced.
Java is the first to see this, he used the JVM to achieve platform-independent memory recovery to achieve a stable and robust. But quite a few
How to find the c/c ++ source code corresponding to java, java source code
Many times, java is often despised by c, because c says that I am your foundation, but
most commonly used dcom is vb rather than vc's atl dcom, because c/c ++ is efficient but easy to use.
An error occurs. If you release the memory nt accidentally, the resource will soon be insufficient.
Java is the first to see this situation. He uses jvm to implement platform-independent memory collection to ensure stability and robustness. however, many
[Zz] Using thrift for c ++, mutual calls between java and python-zareilynn-blog Park
[Zz] Using thrift for c ++, java and python calls each other
To install thrift on linux, seeHttp://jinghong.iteye.com/blog/1102535Thrift, as a cross-language calling solution, has the advantages of high efficiency, many languages,
Differences between 1.java and C # static member invocationStatic, which is a shared resource, is created when the class is loaded.Java can be invoked through an instance, or by a class name. member name, but it is generally preferable to use the class name. Member this way, because static members belong to the class, not to specific objectsC # can only be called by the class name. Member, and cannot beTo i
Code:
Http://files.cnblogs.com/kenkofox/Client-CPlusPlus.rarHttp://files.cnblogs.com/kenkofox/Server_Java.rar
Java and C ++ use socket communication. In fact, the underlying socket is the same, so they only need to follow their respective syntax.
JavaServer uses serversocketAcceptCreate socket, Similar to common JavaThe communication is consistent.
C
Step 5: create a shared library file
Next, we will create a localCode.
In addition to creating executable machine code files, most C and C ++ compilers can also create shared library files.
The command used to create shared library files depends on the compiler you use.
The following commands are executed in windows.
Windows:
Use Visual Studio commandprompttool cl.exe
CL-I "
JAVA to C #. net C # some basic functions are commonly used, JAVA
After learning java, it is actually very simple to learn c #. There are not many differences in the basic syntax. When you use
C # Study Notes (compared with Java, C, C ++, and Python)Recently I am going to learn about Unity3D, and select C # in C # and JavaScript #. Therefore, as a preparation for learning Unity3D, you must first learn
The mainstream of the mobile phone platform is many, and the main platform of the language support is similar;1, Windows system WP8 on the main support VB, C #, C + +,2, Apple system iOS support OBJECT-C, C + +3, Android system support Java,
must add extra code, and I can think of the C + + compiler for the static int x = init (); The pseudo-code that may be added is as follows:
static int x; static char flag = 0; if (flag = = 0) { x = init ();
flag = 1; } return x;As you can see, the C + + compiler privately generates redundant assembly code for us. The result is that C
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