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- What is the difference between overloading and rewriting in java
- The difference between overloading and rewriting in Java: 1. Overloading occurs in this class, and rewriting occurs between the parent class and the subclass; 2. The overloaded method names must be the same, and the overridden method names must be the same and return The value types must be the same; 3. The overloaded parameter list is different, and the overridden parameter list must be the same.
- Javagetting Started 55372 2020-10-19 15:25:54
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- What is the usage of this keyword in java
- Usage of this keyword in java: 1. Call the attributes in this class, that is, the member variables in the class; 2. Call other methods in this class; 3. Call other constructors in this class, which need to be placed in the The first line of the constructor method.
- Javagetting Started 33558 2020-10-19 15:03:09
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- What is java mainly used for?
- The main application areas of java: 1. Large websites; 2. Large enterprise-level applications; 3. E-government; 4. Games; 5. Embedded devices and consumer electronics; 6. Big data. Java is mainly divided into three parts: 1. javaSE; 2. javaME; 3. javaEE.
- Javagetting Started 47797 2020-10-19 14:39:17
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- Introduction to five methods of traversing a map
- This article shares five methods for traversing a map. I hope it can be helpful to everyone.
- Javagetting Started 3538 2020-10-14 15:45:42
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- How to implement multi-threading in java
- Getting started with java: This article introduces the methods and ideas for implementing multi-threading. It has certain reference value and I hope it can help everyone.
- Javagetting Started 2037 2020-09-30 15:56:35
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- What is recursion
- This article introduces you to the relevant knowledge of recursion, I hope it can help you.
- Javagetting Started 1971 2020-09-30 15:57:32
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- Explain in detail the difference between equals and ==
- This article provides a detailed analysis of the difference between equals and ==, which has certain reference value. I hope it can help everyone. == is to determine whether two variables or instances point to the same memory space, and equals is to determine whether the values of the memory spaces pointed to by two variables or instances are the same.
- Javagetting Started 2216 2020-09-28 16:17:46
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- Implement a simple poker game using java
- Define five People playing a poker game. The gameplay is that each of the five people draws 4 cards from a deck of playing cards without a king. There are four types of cards: ♥, ♣, ♠, ♦. The size of the cards ranges from 1 to 13.
- Javagetting Started 3678 2020-09-18 16:56:47
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- How to save the string data in the arraylist collection into a text file
- The method of saving the string data in the arraylist collection in a text file: first traverse the ArrayList collection to obtain the data; then store the data in the text file.
- Javagetting Started 5197 2020-09-17 17:13:08
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![What does [...] in java mean?](https://img.php.cn/upload/article/000/000/041/5f608654bc40e726.jpg?x-oss-process=image/resize,m_fill,h_100,w_220)
- What does [...] in java mean?
- [...] in Java represents variable-length parameters, which means that any number of parameters of this type can be passed in at this position.
- Javagetting Started 6089 2020-09-15 17:20:30
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- Java uses a two-dimensional array to print Yang Hui's triangle
- Java introductory tutorial: This article shares with you the method of printing Yang Hui's triangle using a two-dimensional array. It has certain reference value and I hope it can help everyone.
- Javagetting Started 3365 2020-09-14 11:08:48
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- Java implements copying list
- This article introduces the method of copying list in Java. It has certain reference value and I hope it can help everyone.
- Javagetting Started 2106 2020-09-11 15:51:15
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- Java implements a tool class to determine whether the IP is in the specified IP range
- Java introductory tutorial: This article shares with you a tool class to determine whether the IP is within the specified IP range. It has certain reference value and I hope it can help everyone. Idea: Use ip and the values at both ends of the ip range to call the ipIsValid method.
- Javagetting Started 2747 2020-09-10 17:45:59
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- Java implements file upload and download functions
- This article introduces how to implement the file upload and download functions. It has certain reference value and I hope it can help everyone.
- Javagetting Started 3384 2020-09-08 17:53:26
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- How to find numbers that appear only once in an integer array
- How to find numbers that appear only once in an integer array: We can use the HashMap method. The keys in the HashMap store the numbers in the array, and the values store the number of occurrences of the values in the array.
- Javagetting Started 2593 2020-09-07 17:50:13
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