Open a command prompt window and go to the directory where you saved the java program. Compiling a Java program is very easy after JDK installation. Class file of the HelloWorld.java file, we need to execute the following command in the command prompt.Javac - Java programming language compilerWe need to configure gradle to find these generated Java classes in build/generated-sources/jaxb and add genJaxb as a dependency of compileJava task. Class file of that Java source code. When we compile the above program, the compiler generates a. So, the compiler creates class files depending on the number of classes declared in that Java source file.

Classes One or more classes to be processed for annotations (such as MyPackage.MyClass). Sourcefiles One or more source files to be compiled (such as MyClass.java). Options Command-line options. This class is used for creation of files and directories, file searching, fiArguments may be in any order. SYNOPSIS javac Java - File Class, Java File class represents the files and directory pathnames in an abstract manner. If there are no errors in your code, the command prompt will take you to the.

It can also process annotations in Java source files and classes.There are two ways to pass source code file names to javac: DESCRIPTIONThe javac tool reads class and interface definitions, written in the Java programming language, and compiles them into bytecode class files. The -J options are not allowed in these files.

These class files have names combining the inner and outer class names, such as MyClass$MyInnerClass.class.You should arrange source files in a directory tree that reflects their package tree. For example, a class called MyClass would be written in a source file called MyClass.java and compiled into a bytecode class file called MyClass.class.Inner class definitions produce additional class files. Class suffixes, and both source and class files must have root names that identify the class. Java suffixes, class file names must have. Then use the list file name on the javac command line, preceded by an character.Source code file names must have. For a large number of source files, list the file names in a file, separated by blanks or line breaks.

Standard Options -A key Options to pass to annotation processors. Non-standard options begin with -X. An additional set of non-standard options are specific to the current virtual machine and compiler implementations and are subject to change in the future. OPTIONSThe compiler has a set of standard options that are supported on the current development environment and will be supported in future releases. You can specify a separate destination directory with -d (see Options, below).

If neither CLASSPATH, -cp nor -classpath is specified, the user class path consists of the current directory. This class path overrides the user class path in the CLASSPATH environment variable. -cp path or -classpath path Specify where to find user class files, and (optionally) annotation processors and source files. Key should be one or more identifiers separated by '.'.

If a class is part of a package, javac puts the class file in a subdirectory reflecting the package name, creating directories as needed. The directory must already exist javac will not create it. -d directory Set the destination directory for class files. -Djava.endorsed.dirs= directories Override the location of endorsed standards path.

-encoding encoding Set the source file encoding name, such as EUC-JP and UTF-8. -deprecation is shorthand for -Xlint:deprecation. Without -deprecation, javac shows a summary of the source files that use or override deprecated members or classes.

If a class is part of a package, the compiler puts the source file in a subdirectory reflecting the package name, creating directories as needed. The directory must already exist javac will not create it. -s dir Specify the directory where to place generated source files.

1.5 The compiler accepts code containing generics and other language features introduced in Java SE 5. 1.4 The compiler accepts code containing assertions, which were introduced in Java SE 1.4. The following values for release are allowed:1.3 The compiler does not support assertions, generics, or other language features introduced after Java SE 1.3. -source release Specifies the version of source code accepted.

The compiler accepts code with features introduced in Java SE 7. 1.7 This is the default value. However, encoding errors in source files are now reported as errors instead of warnings as in previous releases of Java SE.

-target version Generate class files that target a specified version of the VM. It is important to use -bootclasspath and -extdirs when cross-compiling see Cross-Compilation Example below. But javac also supports cross-compiling, where classes are compiled against a bootstrap and extension classes of a different Java platform implementation. Cross-Compilation OptionsBy default, classes are compiled against the bootstrap and extension classes of the platform that javac shipped with. -X Display information about non-standard options and exit.

If -source is 1.3, the value of -target is 1. If -source is 1.2, the value of -target is 1.4 If -source is not specified, the value of -target is 1.7 Valid targets are 1.1, 1.2, 1.3, 1.4, 1.5 (also 5), 1.6 (also 6), and 1.7 (also 7).The default for -target depends on the value of -source:

Compile Java Class File