current location：Home > Technical Articles > Java > Javagetting Started
- Direction：
- All web3.0 Backend Development Web Front-end Database Operation and Maintenance Development Tools PHP Framework Common Problem Other Tech CMS Tutorial Java System Tutorial Computer Tutorials Hardware Tutorial Mobile Tutorial Software Tutorial Mobile Game Tutorial
- Classify：
-
- Solution to failure to create java virtual machine
- The solution to the failure to create a java virtual machine: first open the eclipse.ini file; then find the –launcher.XXMaxPermSize property; and finally change the value of this property to 512m.
- Javagetting Started 7918 2020-02-03 13:47:13
-
- How to write the Java path in Linux?
- To obtain the path in Java in Linux, you can call the System.getproperties().getProperty(property) method. When the value of property is user.home, the user's home directory is obtained.
- Javagetting Started 3617 2020-02-03 13:17:35
-
- what is java algorithm
- An algorithm refers to an accurate and complete description of a problem-solving solution and a series of clear instructions for solving a problem. The Java algorithm uses the Java language to implement clear instructions for solving a certain problem.
- Javagetting Started 7101 2020-02-03 11:45:22
-
- Java creates arrays to store different types of data
- To create an array to store different types of data in Java, you can use Object to implement it. Use new Object[3] to create an array with a length of 3, which can store different types of data. Data type conversion is required when using it.
- Javagetting Started 5155 2020-02-03 11:25:14
-
- How to solve the problem that mac cannot find java?
- It is very simple to find Java under mac. You only need to enter a command in the terminal: /usr/libexec/java_home -V. This command will return the java directory installed on mac and the Java version currently in use.
- Javagetting Started 4493 2020-02-03 11:11:18
-
- How to check whether java is installed
- How to check that Java has been installed: First open the command line tool; then enter the commands java -version and javac. If there is no prompt such as "It is not an internal or external command, nor an operable program", then Java has been installed.
- Javagetting Started 4673 2020-02-03 10:51:18
-
- How to create an array of variable length in java?
- JAVA cannot define an array of variable length, either declare it as NULL or specify its length. If we need a collection of variable length, we can use ArrayList to solve it, and use new ArrayList() to create it.
- Javagetting Started 12241 2020-02-03 10:38:53
-
- How to create a unique collection in java?
- How to create a unique set in Java: First use new HashSet() to instantiate a set collection; then add data to the set through the add method, because the Set collection has the characteristics of being unordered and non-repeatable.
- Javagetting Started 4577 2020-02-03 10:23:26
-
- What is T in java?
- T is a tag symbol in Java generics, which represents Type. The essence of generics is a parameterized type, which means that the data type being operated on is specified as a parameter. The advantage is that it allows programmers to detect illegal types at compile time.
- Javagetting Started 7247 2020-02-03 10:05:50
-
- eclipse cannot open java virtual machine
- The solution to the problem that eclipse cannot open the java virtual machine is: 1. First enter the decompression directory and open the eclipse.ini configuration file; 2. Then edit the configuration file and modify the corresponding parameters to 128M and 256M; 3. Finally save the configuration file. Just restart eclipse.
- Javagetting Started 3618 2020-02-03 09:43:53
-
- How to set java environment variables
- Method to set java environment variables: 1. Open [Computer], [Properties], [Advanced System Settings], [Environment Variables] in sequence; 2. Create a new [JAVA_HOME] variable and edit the [Path] variable; 3. Finally create a new [JAVA_HOME] variable and edit the [Path] variable; Classpath] variable and edit it.
- Javagetting Started 11370 2020-09-05 15:40:58
-
- How java code is recognized by machines
- The process of machine recognition of Java code is: 1. First use a compiler to compile Java source code (.java file) into a bytecode file (.class file); 2. Then use a virtual machine (JVM) to translate the bytecode into a machine code; 3. Finally, the machine code is recognized by the machine.
- Javagetting Started 3149 2020-02-02 20:16:11
-
- Win10 system installation and configuration jdk1.8
- This article comes from the java introductory tutorial column. It demonstrates how to install and configure jdk in win10 system in the form of pictures and texts. I hope it can help you. First you need to download jdk, then open advanced system settings and configure environment variables.
- Javagetting Started 2747 2020-01-19 17:20:55
-
- what is java reflection mechanism
- The basis of the Java reflection mechanism comes from a Class class. We can read and instantiate each class through the methods in this class. The reflection mechanism will make the instantiation of classes more flexible.
- Javagetting Started 2497 2020-01-19 17:02:55
-
- Example explanation of random class and scanner class
- This article comes from the Java Quick Start column. It introduces the random class and scanner class in Java in detail through examples. I hope it can help you. [Math.random()] generates a random number, the random number is between 0 and 1, and the type is double.
- Javagetting Started 2328 2020-01-17 17:04:21
Recommended Articles
Tool Recommendations
jQuery enterprise message form contact code
jQuery enterprise message form contact code is a simple and practical enterprise message form and contact us introduction page code.
form button
2024-02-29
HTML5 MP3 music box playback effects
HTML5 MP3 music box playback special effect is an mp3 music player based on HTML5 css3 to create cute music box emoticons and click the switch button.
Player special effects
2024-02-29
HTML5 cool particle animation navigation menu special effects
HTML5 cool particle animation navigation menu special effect is a special effect that changes color when the navigation menu is hovered by the mouse.
Menu navigation
2024-02-29
jQuery visual form drag and drop editing code
jQuery visual form drag and drop editing code is a visual form based on jQuery and bootstrap framework.
form button
2024-02-29
Organic fruit and vegetable supplier web template Bootstrap5
An organic fruit and vegetable supplier web template-Bootstrap5
Bootstrap template
2023-02-03
Bootstrap3 multifunctional data information background management responsive web page template-Novus
Bootstrap3 multifunctional data information background management responsive web page template-Novus
backend template
2023-02-02
Real estate resource service platform web page template Bootstrap5
Real estate resource service platform web page template Bootstrap5
Bootstrap template
2023-02-02
Simple resume information web template Bootstrap4
Simple resume information web template Bootstrap4
Bootstrap template
2023-02-02
Cute summer elements vector material (EPS PNG)
This is a cute summer element vector material, including the sun, sun hat, coconut tree, bikini, airplane, watermelon, ice cream, ice cream, cold drink, swimming ring, flip-flops, pineapple, conch, shell, starfish, crab, Lemons, sunscreen, sunglasses, etc., the materials are provided in EPS and PNG formats, including JPG previews.
PNG material
2024-05-09
Four red 2023 graduation badges vector material (AI EPS PNG)
This is a red 2023 graduation badge vector material, four in total, available in AI, EPS and PNG formats, including JPG preview.
PNG material
2024-02-29
Singing bird and cart filled with flowers design spring banner vector material (AI EPS)
This is a spring banner vector material designed with singing birds and a cart full of flowers. It is available in AI and EPS formats, including JPG preview.
banner picture
2024-02-29
Golden graduation cap vector material (EPS PNG)
This is a golden graduation cap vector material, available in EPS and PNG formats, including JPG preview.
PNG material
2024-02-27
Home Decor Cleaning and Repair Service Company Website Template
Home Decoration Cleaning and Maintenance Service Company Website Template is a website template download suitable for promotional websites that provide home decoration, cleaning, maintenance and other service organizations. Tip: This template calls the Google font library, and the page may open slowly.
Front-end template
2024-05-09
Fresh color personal resume guide page template
Fresh color matching personal job application resume guide page template is a personal job search resume work display guide page web template download suitable for fresh color matching style. Tip: This template calls the Google font library, and the page may open slowly.
Front-end template
2024-02-29
Designer Creative Job Resume Web Template
Designer Creative Job Resume Web Template is a downloadable web template for personal job resume display suitable for various designer positions. Tip: This template calls the Google font library, and the page may open slowly.
Front-end template
2024-02-28
Modern engineering construction company website template
The modern engineering and construction company website template is a downloadable website template suitable for promotion of the engineering and construction service industry. Tip: This template calls the Google font library, and the page may open slowly.
Front-end template
2024-02-28
