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An executable Java program can be packaged in a JAR file, along with any libraries the program uses. Executable JAR files have the manifest specifying the entry point class with Main-Class: myPrograms.MyClass and an explicit Class-Path (and the -cp argument is ignored). Some operating systems can run these directly when clicked.
The Java Packager tool is a tool included in the JDK which allows to package Java applications from the command line. It is an alternative to using other packaging tools like Apache Ant. [1] Note that the Java Packager does not automatically produce a Jar file. Many other formats are available, including native executable formats for the platform.
java is the Java runtime launcher, a type of SDK Tool (A command-line tool, such as javac, javadoc, or apt) -classpath D:\myprogram sets the path to the packages used in the program (on Linux, -cp /home/user/myprogram ) and
JAR files are created with the jar command-line utility. The command jar cf myPackage.jar *.class compresses all .class files into the JAR file myPackage.jar. The 'c' option on the command line tells the jar command to "create new archive." The ' f ' option tells it to create a file. The file's name comes next before the contents of the JAR file.
In computer programming, a manifest file is a file containing metadata for a group of accompanying files that are part of a set or coherent unit. For example, the files of a computer program may have a manifest describing the name, version number , license and the constituent files of the program. [ 1 ]
The Java class loader, part of the Java Runtime Environment, dynamically loads Java classes into the Java Virtual Machine. [1] Usually classes are only loaded on demand . The virtual machine will only load the class files required for executing the program. [ 2 ]
This is a comparison of binary executable file formats which, once loaded by a suitable executable loader, can be directly executed by the CPU rather than being interpreted by software. In addition to the binary application code, the executables may contain headers and tables with relocation and fixup information as well as various kinds of ...
The Java Class Library (JCL) is a set of dynamically loadable libraries that Java Virtual Machine (JVM) languages can call at run time. Because the Java Platform is not dependent on a specific operating system , applications cannot rely on any of the platform-native libraries.