java certification study guide

the Getxxxfield function to get the value of the variable, need to pass in the object and variable ID of the instance variable4>, call the Setxxxfield function to modify the value of the variable, you need to pass in the value of the object, variable ID, and variable that the instance variable belongs to3. Access and modify static variable operation steps:1>, call the Findclass function to get the class reference2>, call the Getstaticfieldid function to get the ID of a static variable in the cl

JNI/NDK Development Guide (2) -- JVM rules for finding java native Methods Through the first article, we understand that before calling the native method, we must first call the System. the loadLibrary interface loads a dynamic library that implements the native Method for normal access. Otherwise, java is thrown. lang. the UnsatisfiedLinkError is abnormal and th

data type of the return value. such as: Callstaticintmethod2, call the instance method using the CALLXXXMETHOD/V/A function, XXX represents the returned data type, such as: Callintmethod3. Get the ID of an instance method, use the Getmethodid function, pass in the method name and method signature4, obtained with the ID of a static method, using the Getstaticmethodid function, passing in the method name and method signature5. Get the constructor method ID, using the "6. Get a class instance of t

function generated by Helloworld.class:/* Class: com_study_jnilearn_helloworld * Method: Test * Signature: (sijfdczbljava/lang/string; Ljava/lang/object; Lcom/study/jnilearn/myclass; [I) V */jniexport void Jnicall java_com_study_jnilearn_helloworld_test (jnienv *env, Jclass cls, Jshort S, jint I, Jlong l , Jfloat F, jdouble D, Jchar C, Jboolean Z, jbyte B, jstring j_str, Jobject jobj1, Jobject job2, Jintarray J_int_arr) { printf ("S=

classmates blog and code This week's study of the knot Pair of students study No. 1 Pair of photos Pairs of learning content Xxxx Xxxx ... Last week's blog comments on the situation (as long as the link, specific reviews put the corresponding blog) Study No. 1

. They is Java componentsD. You can control whether or not they'll be visibleE. All of the aboveAfter flipping through the textbooks, I found that all aspects were correct. In Java, it's possible to create a infinite loop out of the while and does loops, but not for-loops.A. TrueB. FalseWhile and do loops can be infinite loops, but for loops can be infinite loops. This is not true in many other programm

. Learning progress Bar lines of code (new/cumulative) Blog Volume (Add/accumulate) Learning Time (new/cumulative) Important Growth Goal 5000 rows 30 Articles 400 hours Second week 426/426 3/3 12/12 Resources "Java2 Practical Course (Fifth Edition)" Learning Guide Tips for how to turn off internal errors, sy

, and the question of the space. Finally found that the programming work is really a very meticulous work, read the book, does not mean that hands will, hope in the future, more hands-on practice, not lazy, not afraid of trouble, theory and practice, can form a meticulous and check the habit, little by little accumulation. Maybe I am a slow walker,but I never walk back!!Learning progress Bar Lines of code (new/cumulative) Blog volume (Add/accumulate) Learning time

source files.Learning progress Bar lines of code (new/cumulative) Blog Volume (Add/accumulate) Learning Time (new/cumulative) Important Growth Goal 5000 rows 30 Articles 400 hours First week 31/200 1/2 12/20 Git uses Second week 404/500 3/4 24/38 Java Basic syntax Third week 920/100

, under the guidance of senior seniors, carried out the following operations, and git remote rm origin git remote add origin http://git.oschina.net/zicerain/java20165218 then use git init ,,, git add . git commit git push origin master can successfully upload For an introduction to Git's various commands, what does the git commit command do? _ Baidu knows Resources Java Learning Note (8th Edition) Learning

. Question two: What are the relevant commands for the collation of the catalog files in the first lesson? Workaround: Bin is the program directory; src is the source code directory; Include is the system folder; The LIP directory is the repository file. Question three: When uploading code via git push, is the authentication error?fatal: Authentication failed for ‘https://gitee.com/hcj_20165324/java-besti-is-hcj.git/‘ WORKAROUND: The c

resolved since the conflict was resolved, but the total number of lines of code was not used to run the script.Script run: Code Cloud Link SentimentThrough this week's study and summary, the Java remote Call is not very understanding, the code is a bit complicated, so it seems too messy.Learning progress Bar lines of code (new/cumulative) Blog Volume (Add/accumulate)

this synchronization method. wait(),notify(),notifyAll()都是Object类中的final方法 Thread Federation While a thread A is occupying CPU resources, it is possible for other threads to call join () and this thread to federate as: B.join(); . GUI thread When a Java program contains a graphical user interface (GUI), the Java virtual machine automatically launches more threads when it run

. 245 page71 Video 8.6 Viewer mode for linkage Scenarios 8.4.3 page No. 25172 Video 8.7 Applying a dependency reversal principle can reduce the range of changes affected 8.5.1 No. 254 page73 Video 8.8 A single responsibility principle that can keep classes as stable as possible 8.5.2 No. 256 page74 Video 8.9 The Richter replacement principle to follow when inheriting 8.5.3 No. 257 page75 Video 8.10 Optimizing inherited usage scenarios by using the synthetic Multiplexing Principle page No. 261 of

I think learning Java This course the biggest harvest or let me learn how to self-study. Code HostingLearning progress Bar lines of code (new /Cumulative) Blog volume ( new/cumulative) Learning time (new/cumulative) Important growth Goal 4500 rows 30 Articles 350 hours Be able to use Java