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- 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))].
- Javagetting Started 2446 2020-01-03 17:02:19
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- 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.
- Javagetting Started 4369 2020-01-02 09:52:17
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- 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).
- Javagetting Started 2996 2019-12-31 17:14:38
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- 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).
- Javagetting Started 2365 2019-12-31 16:55:11
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- 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.
- Javagetting Started 3697 2019-12-31 16:49:52
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- 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".
- Javagetting Started 2254 2019-12-31 15:24:52
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- 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.
- Javagetting Started 2487 2019-12-30 18:09:26
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- 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.
- Javagetting Started 8067 2019-12-30 18:02:59
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- 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.
- Javagetting Started 2626 2019-12-30 17:56:04
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- 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.
- Javagetting Started 5353 2019-12-30 17:26:29
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- 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.
- Javagetting Started 4898 2019-12-30 17:14:08
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- 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.
- Javagetting Started 2463 2019-12-30 11:50:39
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- 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.
- Javagetting Started 4165 2019-12-28 17:12:04
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- What is the difference between j2ee and java?
- Difference: Java is a high-level computer language, while J2EE is a standard and a popular technical architecture. J2EE, J2ME, and J2SE together constitute the Java2 platform, and they are all implemented in the Java language.
- Javagetting Started 6474 2019-12-27 15:30:15
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- What is char in java?
- Char is a reserved word in Java and one of the eight basic data types in Java. Char is called "character type" in Java and occupies 2 bytes. A character constant is a character enclosed in single quotes, and what a character constant stores in memory is the sorting position of the character in the Unicode character set, that is, an integer.
- Javagetting Started 7934 2019-12-27 14:58:05
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