java self study

weeks Total code amount new Code volume Total Files number of new files added 1 5 5 2 468 382 ten 3 818 " + 6 5 1421 403 + 6 + 2123 702 $

20145311 "Java Program design" Seventh week study summary textbook Learning content Summary 12th Chapter LAMBDALambda expressions make programs more concise and can be processed in parallel when designed in parallel.The 13th chapter time and date 13.1timedate 13.1.1 Measurement of Time 1, Greenwich Mean Time (GMT) abbreviated to GMT to observe the sun2, Universal time (World) UT3. International A

20165217 2017-2018-2 "Java program design" Fifth week study summary textbook study summaryUnite 7 Inner class: Java supports declaring another class within a class, such that a class is called an inner class, and a class containing an inner class is called an outer class of an inner one. Outer-Nested class: A cla

20145334 Zhao Writers "java program Design" The 4th Week study summary textbook Learning content SummarySixth chapter summary of knowledge points1-Inheritance common behavior: if there is duplication in the program design, it needs to be modified, so the same program code promotion (pull up) is the parent class. The extends keyword indicates that the new class expands the behavior of the original class.2-po

20155317 Wang Ying 2006-2007-2 "java Program Design" 3rd week study summary textbook Study content summary fourth chapter The meaning of Chothes (String Coler,char size) is to initialize the two objects, color and size, so that initialization can be done in a canonical format for assigning values to the two objects. The meaning of new, according to t

20145311 "Java Programming" Seventh Week study summary textbook study content summary 14th NiO and NIO2Advanced input and output processing, can use NIO (New IO), NIO2 is the file system API15th Chapter General API15.1 Log 15.1.1 Log API The starting point for using the log is the Logger class, to obtain the Logger class, you must use Logger's static m

20172325 2017-2018-2 "Java Programming" Nineth Week study SummarySummary of learning contents of textbook1. Learn the basic concepts of anomalies;2. Distinguishing between exceptions and errors: An exception is an object that defines an abnormal condition or error that is thrown by the program or run-time environment and can be captured and processed as needed. The error is similar to an exception,

20165219 2017-2018-2 "Java Program Design" 8th Week study summary Textbook learning content summary process and threadsA thread is a smaller unit than a process, and some memory units in a process can be shared between threadsJava's multi-line mechanism thread class and thread creationOne way to create a thread is to Thread create the thread object directly with the classUsing Runnable interfaces is Thread

This week, through self-study and under the leadership of teachers to learn the thread. The main points of knowledge are as follows:1. Multithreading is a number of execution threads that occur during process execution. Multithreading means that a multi-line statement of a program can appear to run at the same time almost simultaneously.2. Threads are smaller units than process execution.3. Threads cannot exist independently and must exist in the proc

1. This week study summary 1.1 summarizes the set and generic related content in the way you like (mind map or other). One of the primary purposes of generics is to specify what type of object the container holds, and the compiler guarantees the correctness of the type. Tuple, which is a single object in which a set of objects is packaged directly and stored in it. Generics can also be applied to a method, and it has no relation to wh

name, otherwise there will be a compilation error.Because my careless more hit a "W" led to the compilation of errors, but this episode also let me notice this knowledge point, also told me to do things carefully, because careless committed the wrong always take a lot of time to be wrong.OtherWinter vacation when patronize doings wherever other things, have not read Java, now some regret, should initially look at the

Eclipse integrated development environment① After you start Eclipse, create a new project.② Select Java Project.③ creates a new class under project construction.④ write the program and run it.Write the Hello world process as shown inUsing this program, I tried to write the Chinese can be recognized, to conclude that writing in quotation marks in Chinese output, as shown in.99 the multiplication table as shown4. Experiment Summary: This is the first t

Is Java Interface the best place for constant storage? (reprint study, non-original)Because the fields declared in Java interface are automatically added to the static final modifier at compile time, they are declared as constants. Thus interface is usually the best place to store constants. However, there are some problems in the practical application of Java.Th

20145216 "Java Program Design" 6th Week study summary textbook Study content summary tenth chapter input/output 10.1 InputStream and OutputStream If you want to take the data out of the source, you can use the input stream, and if you write the data to the destination, you can use the output stream. In Java, the in

Experiment Two Java Basic Program Design ( 1 )Experimental Time 2018-9-6The study and mastery of theoretical knowledge:Naming conventions: Case sensitive: All names are case-sensitive Class name: Uppercase for each word first letter Method Name: All methods start with lowercase letters class file name: Class file name must be the same as the class name Program main entrance: All pro

As a novice programmer interview or technical learning sometimes blind, no clue, in fact, look back, the general aspect is relatively clear.1. Java aspects(1) Java syntax(2) data structure, 8 kinds of basic data types, String, StringBuffer, Stringbuild,map, collection(3) Multithreading, lock, Singleton mode, thread pool(4) Message mechanism(5) agent, design mode(6) algorithm(7) database, MySQL, sub-Library

= args[1];String s2 = args[2];String s3 = args[3];System.out.println (S3);}}A. A compilation error has occurred in the program.B. No compile error, execute program at command line: "Java E I love this game", program output this.C. No compile error, execute program at command line: "Java E let us go", program no run exception.D. No compile error, execute program at command line: "

This week I learned Java objects and classes on the Internet, and I learned about objects and classes and simple usage. An object is an instance of a class ( objects are not looking for a girlfriend ), stateful and behavioral. For example, a dog is an object whose state is: color, name, variety, behavior: wagging the tail, barking, eating, etc. A class is a template that describes the behavior and state of a class of objects. In addition, I learned an

. Code Cloud codes Submission record3.2 PTA Problem set complete situation diagram3.3 Count the amount of code completed this week4. Assess how much you understand JavaTry to evaluate how much you understand Java from the following dimensions Dimension of degree Grammar PTA problem is still a little difficult to complete, most of the time need a roommate to help check the wrong changes to pass.

7 1969 518 35 3 8 2284 315 43 8 9 2682 344 47 4 4. Assess how much you understand JavaTry to evaluate how much you understand Java from the following dimensions Dimension of degree Grammar Reluctantly completed PTA Topic Object-oriented design capabilities The ability to mo