Use notepad to write the entire process of Java program diagram

Java is an object-oriented programming language for writing cross-platform applications. It is the general name of Java programming language and Java platform (i.e. JavaSE, JavaEE, JavaME) introduced by Sun Microsystems in May 1995. Java technology is remarkably versatile, efficient, platform portable and secure, and is widely used in personal PCS, data centers, game consoles, science supercomputers, mobile phones and the Internet, with the largest professional community of developers in the world.

Create the first Java method

1 first, right-click to create a new text document.

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2 change the suffix of the text document to.java. Note that the filename must be the same as the class name.

If you don't have a suffix on your computer you need to set it up.

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3. Open the computer -- organization -- folder option -- view -- and uncheck the hidden folder option.

It is recommended to uncheck this option, there are many malicious programs will invade our computer, uncheck can be a good way to view the virus and other file types.

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4 right - click the document, select edit to write Java.

When we write, we have a certain format, the format of the Java language is for our convenience to change the program in the future and we must follow this format.

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The second way

Create a new notepad document and select save.

Pay attention to the save location, don't wait until the end of the file can not find where.

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Type the suffix ".java "in the selected save window and save. Note that the filename must be the same as the class name.

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3 also right - click the file, select edit can be edited in the file.

Press enter between the first two braces, and there is a space between the second pair of braces. Just press TAb.

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The test runs the Java program

Open the run command or directly enter the CMD call command window in the open menu.

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Type your file directory into the command prompt window where your file is saved. For example, mine is the D root directory, so I type "D:".

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Compile the Java file to generate the class file.

At the command prompt, type "javac filename.java." my file name is A, so type javac a.java and press enter, waiting for compilation.

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Run the file.

Continue typing "Java file name" and press enter to run the file we wrote.

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