Note that in Jimple IR, while-loop and for-loop are also converted to if. If the condition was met then that object was collected. detect dead code in Java programs by incorporating two data-flow analyses. The two main view structures are Slices (flat lists) and Graphs (containing relationships between entries).ĬISQ Quality Measures (2016) - Maintainability The extracted method had a for loop, a if condition and a return statement: For loop was looping a list. View - a subset of CWE entries that provides a way of examining CWE content. In addition, relationships such as PeerOf and CanAlsoBe are defined to show similar weaknesses that the user may want to explore.Ĭategory - a CWE entry that contains a set of other entries that share a common characteristic.ĬERT C Secure Coding Standard (2008) Chapter 14 - Miscellaneous (MSC)ĬERT C++ Secure Coding Section 49 - Miscellaneous (MSC) Remove 'return -1', it should work properly.
#Dead code java for loop software#
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Of course, tools can be created that recognize some instances of dead code and remove them. That is, we know that there is no algorithm that can remove all instances of dead code. the habit of creating fluid Java code comes with years of experience and practice. The conceptual problem here is that dead code elimination is not computable. So the loop will never continue and 'i-' will never be executed. Infinite loop - no code you wrote after the infinite loop will be executed either since the system will keep reiterating the loop. It may be asked in your Java interview coding problems as a puzzle. The for loop has an if block where you are returning the greatest common divisor if found. Im using this to fill an array with user input numbers. I enter one number and it moves on to the next line of code instead of looping. These relationships are defined as ChildOf, ParentOf, MemberOf and give insight to similar items that may exist at higher and lower levels of abstraction. Dead code and Unreachable code in Java Last Updated: ApBy: Lokesh Gupta Java Puzzles Eclipse, Java Compilers, Java Puzzle Learn to identify dead code and unreachable code in Java. I hope this isnt a stupid question but I have looked up every example I can find and it still seems like I have this code right and it still isnt working. This table shows the weaknesses and high level categories that are related to this weakness. Base level weaknesses typically describe issues in terms of 2 or 3 of the following dimensions: behavior, property, technology, language, and resource. However, to improve readability and ensure that logic errors are resolved, dead code should. That is still mostly independent of a resource or technology, but with sufficient details to provide specific methods for detection and prevention. Dead code is usually optimized out of a program during compilation. Class level weaknesses typically describe issues in terms of 1 or 2 of the following dimensions: behavior, property, and resource. More specific than a Pillar Weakness, but more general than a Base Weakness. Class - a weakness that is described in a very abstract fashion, typically independent of any specific language or technology.
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