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How to comment in java

In Java, there are three ways to mark comments: //Single-line comments, multi-line comments: /* */, document comments: /** */; /* */ comments cannot be nested. In other words, you cannot simply wrap the code with /* and */ as a comment, because the code itself may also contain a */.

Nov 14, 2019 am 11:03 AM

java

What is java queue

A queue is a special linear list that follows the principle of "first in, first out". In our daily use, we often use it to operate data concurrently. In concurrent programming, it is sometimes necessary to use thread-safe queues. If you want to implement a thread-safe queue, there are usually two ways: one is to use a blocking queue, and the other is to use a thread synchronization lock.

Nov 14, 2019 am 10:56 AM

java queue

The difference between stack and queue in java

The difference between a stack and a queue in Java: A stack is a bucket. What is put in last is taken out first. What is underneath it cannot come out until it comes out. (Last in, first out); Queues can only perform deletion operations at the head of the queue and insertion operations at the end of the queue, while stacks can only perform insertion and deletion operations at the top of the stack. (first in, first out)

Nov 14, 2019 am 10:55 AM

java

Java compares strings for equality

Java uses the equals method to compare whether the contents of strings are the same. It first determines whether the addresses are equal, and returns true if they are equal; whether the comparison types are the same or not, returns false.

Nov 14, 2019 am 10:46 AM

java

What does Java's >> mean?

Java's >> is a shift operator, >> is a right shift operator, which moves the operand on the left side of the operator to the right by the number of digits specified on the right side of the operator. Just remember one thing about the right shift rule: the sign bit remains unchanged, and the sign bit is added on the left.

Nov 14, 2019 am 10:29 AM

java

How to delete in java?

How to delete java: First enter the control panel on your computer; then find the java icon in the control panel; then select disable java to delete it.

Nov 14, 2019 am 10:27 AM

java

How to open binary file in java

Java reads binary files in bytes, and can also read pictures, music files, video files, etc. In Java, four categories are provided to operate files, namely InputStream, OutputStream, Reader, and Writer.

Nov 14, 2019 am 10:22 AM

java binary file Open

Is big data java?

Big data is not Java. Big data belongs to the direction of the Internet, just like the direction of AI based on big data. They are not the same type, but they belong to the relationship of inclusion and being included.

Nov 14, 2019 am 10:19 AM

java Big Data

What is java package

A java package is a container of classes and is used to separate class name spaces. Java uses the package mechanism to prevent naming conflicts, access control, provide search and location of classes, interfaces, enumerations and annotations, etc.

Nov 14, 2019 am 10:16 AM

java

How to save java program?

How to save a java program: first create a new java file; then open the cmd command and enter "javac"; then enter the folder where the java file is located in cmd; finally enter the java class name to save and run the java file.

Nov 14, 2019 am 10:14 AM

java

What software to use for java programming

Commonly used software for JAVA programming: Eclipse, MyEclipse, IntelliJ IDEA, NetBeans, BlueJ. Eclipse is an open source, Java-based extensible development platform.

Nov 14, 2019 am 10:07 AM

java

What is java encapsulation?

In object-oriented programming methods, encapsulation refers to a method of packaging and hiding the implementation details of an abstract functional interface. Encapsulation can be thought of as a protective barrier that prevents the code and data of the class from being randomly accessed by code defined by the external class.

Nov 14, 2019 am 10:06 AM

java encapsulation

What does java mean?

Java generally represents a computer programming language and is an object-oriented programming language. Compared with C++, it not only inherits its advantages, but Java also abandons the concepts that are difficult to understand in C++. , so it’s easier to use.

Nov 14, 2019 am 09:42 AM

java

What is the difference between java streams

Byte stream output: OutputStream, input: InputStream; character stream output: Writer, input: Reader. The character stream processing unit is a 2-byte Unicode character, operating on characters, character arrays, or strings, while the byte stream processing unit is 1 byte, operating on bytes and byte arrays.

Nov 14, 2019 am 09:36 AM

java the difference flow