Java archive download page

For example, the following command creates the Main. If the entry point class name is in a package, then it could use either the dot. For example, if Main. Sets the file specified by the jarfile operand to be the name of the JAR file that is created c , updated u , extracted x from, or viewed t.

Omitting the f option and the jarfile operand instructs the jar command to accept the JAR file name from stdin for x and t or send the JAR file to stdout for c and u. The jar command adds the attribute's name and value to the JAR file unless an entry already exists with the same name, in which case the jar command updates the value of the attribute.

The m option can be used when creating c or updating u the JAR file. You can add special-purpose name-value attribute pairs to the manifest that are not contained in the default manifest file.

For example, you can add attributes that specify vendor information, release information, package sealing, or to make JAR-bundled applications executable. Does not create a manifest file entry for c and u , or delete a manifest file entry when one exists for u. The M option can be used when creating c or updating u the JAR file. When creating c a JAR file, this option normalizes the archive so that the content is not affected by the packing and unpacking operations of the pack 1 command.

Without this normalization, the signature of a signed JAR can become invalid. When creating c or updating u a JAR file, this option temporarily changes the directory while processing files specified by the file operands.

Its operation is intended to be similar to the -C option of the tar utility. For example, the following command changes to the classes directory and adds the Bar. The following command changes to the classes directory and adds to my.

The JDK includes tools useful for developing and testing programs written in the Java programming language and running on the Java TM platform.

Java SE Downloads. Go to the Oracle Java Archive page. The JDK is a development environment for building applications, applets, and components using the Java programming language. When executing jar, pass in the path and name of each argument file with the leading character. When jar encounters an argument beginning with the character , it expands the contents of that file into the argument list.

For example, you can use a single argument file named classes. If you already have separate subdirectories for images, audio files and classes, you can combine them into a single jar file:.

To add an index file to the jar file for speeding up class loading, use the -i option. Skip to Content. More Microsoft OneDrive More Apple Software Update 2. It was originally introduced to Mac users in Mac OS 9. A Windows version has been available since the introduction of iTunes 7.

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