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- What are the class methods in java
- Java's class method can also be called a static method, which is a method in a class that is modified with static; because a class method belongs to the entire class, the method body of the class method cannot have content related to the object of the class.
- Javagetting Started 9662 2019-11-12 13:12:27
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- How to import java project
- First open eclipse, click "File", and select "Import" in the drop-down menu. Then click "General", select "Existing Projects into Workspace", click "Browse", and select the java project to import.
- Javagetting Started 6077 2019-11-12 13:02:47
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- Which company does java belong to?
- Java was originally developed by Sun Microsystems, but on April 20, 2009, Oracle (ORACLE) acquired Sun Microsystems for cash, so Java now belongs to Oracle.
- Javagetting Started 10439 2019-11-12 12:00:23
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- what is java platform
- The Java platform is a platform on which software written in the Java programming language runs. It is an intermediary between Java software and computer systems. It was originally designed for use in desktop programs such as Applets, but later gradually moved to server applications.
- Javagetting Started 2775 2019-11-12 11:48:41
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- How to define java array
- There are two ways to define arrays in Java: dynamic way, data type [] array name = new data type stored in the array [length];; static way, data type [] array name = new data type [] {element 1, Element 2, Element 3...};.
- Javagetting Started 8113 2019-11-12 11:43:17
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- How to delete java files
- First find the path to the file you want to delete. Then open eclipse and obtain the file through "File folder=new File();" in the main method. Then call the "deleteFolder(folder)" method to delete the file.
- Javagetting Started 4696 2019-11-12 11:42:04
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- How to call java interface
- First open Eclipse to create the project and package. Then create an interface and define interface methods. Then create the interface implementation class, name the class, implement the interface in the class, and override the interface methods. Create another class and define a constructor with parameters, using the interface type to define the parameters. Finally, define the method of the class, that is, use the interface variable to call the interface method.
- Javagetting Started 5577 2019-11-12 11:23:41
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- How to inherit in java and what keywords to use?
- Java can achieve class-to-class inheritance through the extends keyword. The inherited class is called a parent class, base class or super class, and the inherited class is called a subclass or derived class.
- Javagetting Started 4900 2019-11-12 11:07:26
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- What is the function of java
- Java is a programming language whose role is to help people solve problems encountered in daily work, life and study by writing applications.
- Javagetting Started 4791 2019-11-12 10:53:08
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- How to run .java files
- First press the "Windows+R" keys to open Run, and enter "cmd" to open the command line window. Then use cd to enter the folder where the .java file is located, and generate a .class bytecode file with the same name as the .Java file. Then enter "java file name" to run the .java file.
- Javagetting Started 36800 2019-11-12 10:48:47
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- What is the java package?
- Java packages are containers of classes, used to separate class name spaces. If no package name is specified, all examples belong to a default unnamed package. Programmers can use package to indicate which specific package a class in a source file belongs to.
- Javagetting Started 2602 2019-11-12 10:39:07
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- Windows system configuration Java environment
- The method to configure the Java environment under the windows system is: 1. Enter the system environment variable setting; 2. Create a new JAVA_HOME variable and set the variable value to the jdk installation directory; 3. Create a new classpath variable; 4. Check whether the java environment is configured properly.
- Javagetting Started 4500 2019-11-12 10:31:47
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- what is java abstraction
- Abstraction is a core principle of object-oriented programming practice. Java has all OOPs principles. Abstraction is a major building block of the Java language. Generally abstraction comes in two forms: data abstraction and control abstraction. The most commonly discussed abstractions in Java are abstract classes and interfaces.
- Javagetting Started 5239 2019-11-12 10:23:29
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- How to run java program in cmd command interface
- The method to run the java program in the cmd command interface is: 1. Save the java file with the suffix .java; 2. Open the cmd command interface and enter the file directory; 3. Run the javac filename.java command; 4. Run the java filename Order.
- Javagetting Started 10026 2019-11-12 10:19:01
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- What is initialization in Java
- Initialization is to give a variable an initial value. The purpose is to make the variable have a value and prevent exceptions when using it. For example: declare a variable: String aa = "abc"; int cc = 0; where abc and 0 are the initialized values, and the final value is not necessarily abc or 0 if you overwrite the value of aa.
- Javagetting Started 3616 2019-11-12 10:05:16
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