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What does public void mean?

"Public void" is a method used for "rest", indicating that this method can be accessed in the project and has no return value; in Java, "public" is the access modifier of the class, and "void" means an empty type, with no return data.

Jan 04, 2020 am 10:55 AM

How to optimize the output form of arrays in java

Below, the Java introductory tutorial column will introduce to you the method of optimizing the array output form. I hope it can help you. In java, you can use the toString() method in the Arrays class, such as [System.out.println(Arrays.toString(array))].

Jan 03, 2020 pm 05:02 PM

java optimization array

How to configure java environment variables

How to configure java environment variables: 1. First, click [My Computer], [Properties], [Advanced System Settings], [Environment Variables]; 2. Then create a new [JAVA_HOME] environment variable, and the variable value is the jdk path; 3 , and finally edit the [PATH] and [CLASSPATH] environment variables.

Jan 02, 2020 am 09:52 AM

java environment variables Configuration

Java implements circular queue

Java introductory tutorial: During the dequeuing operation, the overhead of the ordinary queue dequeuing operation is too high. All elements after the index 0 need to be moved forward by one position. The more elements there are, the more time is consumed and the time complexity is is O(N).

Dec 31, 2019 pm 05:14 PM

java circular queue

What is the reason for garbled reading and writing of IO streams in Java?

The reasons for garbled reading and writing of IO streams in Java: 1. The encoding and decoding rules are inconsistent; 2. The character encoding does not support a certain language (for example: Chinese).

Dec 31, 2019 pm 04:55 PM

java

What are variable length parameters in java?

Indefinite length parameters are parameters with no specified length. You can use the "..." form to define variable-length parameters in the parameter list. In fact, this variable-length parameter is an array. The compiler will regard the form (int...a) as (int[] a). form.

Dec 31, 2019 pm 04:49 PM

java

How to solve the garbled Chinese parameters in Java?

Solution to garbled Chinese parameters in Java: 1. Transcode when the backend receives parameters; 2. Modify server.xml in the tomcat installation directory and add URIEncoding="UTF-8".

Dec 31, 2019 pm 03:24 PM

java

What did you learn about java?

After learning Java, you can do: website development, software development, mobile phone development, game development, etc. Because Java has high security, platform portability, etc., it is loved by programmers.

Dec 30, 2019 pm 06:09 PM

java

Can enumeration classes be inherited in java?

Enumeration classes in Java cannot be inherited. After the enumeration class is defined using enum, it inherits the java.lang.Enum class by default after compilation; and after using the enum declaration, the class will be declared final by the compiler (same as String), so this class cannot be inherited.

Dec 30, 2019 pm 06:02 PM

java

Can I learn Java by myself?

Java can be taught by yourself, but it requires you to have a certain amount of talent, hard work, and high enough self-discipline. The most important thing is that you have to find Java friends who have been working in the industry for many years and have rich experience to learn from it. Otherwise, it is easy to learn sideways or many questions will not be answered.

Dec 30, 2019 pm 05:54 PM

java

What are the operators in java?

Java's operators include: arithmetic operators (+, -, *, /, %, etc.), relational operators (==, !=, >, >=, etc.), logical operators (&&, ||, !, etc. ), bitwise operators (>>, <<, etc.), conditional operators (?:), dot operators, etc.

Dec 30, 2019 pm 05:26 PM

java operator

What is the java domain?

The so-called domain is actually the translation of "field", which is what we often call fields, or attributes. Field, a field is an attribute, which can be a class variable, an object variable, an object method variable or a parameter of a function.

Dec 30, 2019 pm 05:14 PM

java

Java implements binary search

Below, the Java introductory tutorial column will introduce you to the method of implementing binary search. I hope it can help you. Binary search is a binary search, which searches for specified elements in an ordered sequence and sets the minimum index, maximum index, and intermediate value.

Dec 30, 2019 am 11:50 AM

java accomplish

What is the difference between functions and methods in java?

Methods are functions, and functions are methods. They are just called different names in different languages. They are called methods in object-oriented programming languages ??and functions in procedural programming languages.

Dec 28, 2019 pm 05:12 PM

java function method