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- What is the use of this in java
- The function of this in Java is that when the data in the class needs to be initialized, the value can be assigned through this instead of randomly defining a variable for assignment, which is more conducive to the reading and understanding of the code.
- JavaBase 4669 2019-11-13 11:29:12
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- Detailed introduction to the difference between == and equals in java
- The difference between the == symbol and equals in Java is that the == symbol can act on variables of basic data types to compare whether their stored values are equal, but equals cannot act on variables of basic data types.
- JavaBase 4115 2019-11-13 11:20:35
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- What is the difference between == and equals in java
- The difference between the == symbol and equals in Java is that the == symbol can act on variables of basic data types to compare whether their stored values are equal, but equals cannot act on variables of basic data types.
- JavaBase 2899 2019-11-13 11:19:11
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- what is java method
- A Java method is a method used to solve something or implement a certain function. It consists of modifiers, return value types, method names, parameter lists, and return values.
- JavaBase 3524 2019-11-13 11:15:30
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- Java determines whether number is prime
- How to determine whether a number is a prime number in Java: Use all numbers between 2 and number-1 to divide the number. If one can be divided evenly, it means that the number is a non-prime number; unless all the numbers cannot be divided evenly, it means that the number is a prime number. .
- JavaBase 2579 2019-11-13 11:12:38
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- Java determines whether array is empty
- Java determines whether an array is empty based on the length of the array. If it is 0, it is empty, and vice versa. Java can also use isEmpty() to determine whether an array is empty. It determines whether there are elements in an array. If so, it returns a Boolean value of false, otherwise it returns true.
- JavaBase 8744 2019-11-13 11:05:18
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- what is java game
- Java games are programs written in Java language, which can effectively run on any electronic platform. Many mobile games are developed in Java. Before the popularity of smartphones, most non-smartphones supported running Java games.
- JavaBase 4079 2019-11-13 11:05:16
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- How to determine whether a file or folder exists in java
- The method to determine whether a file or folder exists in Java is: 1. Use the file.exists() method to determine whether a file exists; 2. If the file exists, use the file.isDirectory() method to determine whether it is a folder.
- JavaBase 6551 2019-11-13 11:07:51
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- what is java mobile
- Java mobile phones are mainly Linux-based mobile phones that use Linux+Java to run applications. Mobile phone software is developed in the Java language and is called a Java feature phone. The applications it runs are all executable files ending in *.jar.
- JavaBase 4639 2019-11-13 10:45:31
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- what is java exception
- Java exceptions are a consistent mechanism provided by Java to identify and respond to errors. This exception mechanism can separate the exception handling code and normal business code in the program, ensuring that the program code is more elegant and improving the robustness of the program.
- JavaBase 3457 2019-11-13 10:23:20
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- How to parse XML in java
- There are four ways to use javaXML: DOM way to parse XML, SAX way to parse XML, JDOM way to parse XML, and DOM4j way to parse XML.
- JavaBase 2125 2019-11-13 10:20:14
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- How to understand java reflection
- Reflection in Java is a mechanism that allows us to obtain internal information of classes such as methods, attributes, parent classes, interfaces, etc. at runtime. In other words, reflection is essentially a "reverse" process.
- JavaBase 3063 2019-11-13 10:19:37
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- What is a thread in java? How to understand?
- A thread in Java refers to an execution process in a process. A thread always belongs to a certain process. A thread does not have its own virtual address space and shares all resources allocated to the process with other threads in the process.
- JavaBase 3380 2019-11-13 10:12:59
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- what is java reference
- Java reference is one of the two major data types in Java. It points to an object and we can operate the object through the reference. References are stored in stack memory, objects are stored in heap memory, and references on the stack store the address of the object in the heap.
- JavaBase 3688 2019-11-13 10:12:56
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- How to understand the concept of threads in java
- A thread in Java refers to an execution process in a process. A thread always belongs to a certain process. A thread does not have its own virtual address space and shares all resources allocated to the process with other threads in the process.
- JavaBase 2071 2019-11-13 10:12:10
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