How to decompile, edit and recompile a single class file from a j2me .jar application?

First you have to extract the files from the jar with a zip tool.

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The . Jar(mobile) application contains many class files I want to decompile a single class fiele from it, edit it and Recompile it. Which software will help in recompiling a single class file independently?

Java-me link|improve this question edited Jan 9 at 10:28gnat3,0494714 asked Jan 9 at 10:06sabin149.

First you have to extract the files from the jar with a zip tool. Then, as pointed by gnat, you can use a Java Decompiler as: Java Decompiler JAD Then, you modify the . Java and recompile it.

Finally you can use JAR tool to create a new jar, or even use a zip tool to replace the . Class file in the original jar. Note that if the jar was signed in the first place, you have to make it from scratch and sign it.

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