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    Apps Need help Modifying a file within a JAR

    I have a JAR comprised of java and class files. It is my understanding that the JAR is an executable library comprised of the .class files within. I need to open one of these class folders change a few things and reinsert it into the jar. i am on linux and i have been at this all day to no avail.
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    Apps Tactics to become a better programmer

    I am a self taught new android/java developer and know just enough to realize i don't know nearly enough. Where should i look make my code more efficient ? Below is an app I'm writing that utilizes a couple hundred seekbars and multiple activities. Each seekbar generated global Integers and...
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    Apps working with DrawLine in OnDraw

    Is it possible inside ondraw to have a single point of origin for 100 lines ? The length of each line will be user defined from a different activity via intent. The angle of each line is 360/100. essentially i need to build a ray ( angl*lenght(var) for each of my 100 lines. I am having a...
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