How long can a Java file be?
class file contains a magic number (4 bytes), a version (4 bytes), the constant pool (variable size), etc. But sizes can be defined on several levels: you can have 65535 methods and each is limited to 65535 bytes.
How many lines should a class be?
Like functions, according to Clean Code, classes should also be “smaller than small”. Some people recommend that 200 lines is a good limit for a class – not a method, or as few as 50-60 lines (in Ben Nadel’s Object Calisthenics exercise)and that a class should consist of “less than 10” or “not more than 20” methods.
How many lines should be in a java file?
Files longer than 2000 lines are cumbersome and should be avoided. Having followed Sun/Oracle Coding conventions since Java was invented, I’ve found this rule of thumb on lines per class to be reasonable. 99% of your Java Code should conform… And if it goes over 2000, just put a TODO at the top saying the class needs work.
How many lines should a class file be?
If you stick to the single responsibility principle, your class files will be the right size. The correct answer is 42. Just kidding. Actually, the maximum recommended lines per class is 2000 lines. Files longer than 2000 lines are cumbersome and should be avoided.
How big should a Java class file be?
NOTE: Java versions prior to 1.5 could only have 64KB (16 bits) of generated byte code for each method. In short, the class file can be much larger than anyone would consider useful. If you stick to the single responsibility principle, your class files will be the right size. The correct answer is 42.
Is there a limit to the number of methods in a class?
Some people recommend that 200 lines is a good limit for a class – not a method, or as few as 50-60 lines (in Ben Nadel’s Object Calisthenics exercise)and that a class should consist of “less than 10” or “not more than 20” methods.