Java jar with package
First, create a txt file called manifest.txt in the same folder as the .class file . Then type Main-Class: ExhaustiveSearch 1)note that myClass not myClass 2)note that after myClass there is a new line 3)note if this class, say ExhaustiveSearch is in a package, then the manifest.txt must be in the package folder , then type in Main-Class: exhaustive/ExhaustiveSearch Second, jar class file and manifest file with jar -cvmf manifest.txt app1.jar *.class or jar -cvmf manifest.txt app1.jar ExhaustiveSearch.class 1)note that if ExhaustiveSearch.class is in a package (not mean folder, although in the file system a package is represent as a folder), then you must jar them outside the package (because then you can jar the package together). 2) for example in path E:\java_workspace\Knapsack\bin\exhaustive\ExhaustiveSearch.class when you want to jar this, you have to create manifest.txt in folder bin. Then you type jar -cvmf manifest.txt app1.jar exhaustive/ExhaustiveSearch.clas...
