Answer / vijaya

Apache Ant
•Ant doesn't have formal conventions like a common project
directory structure or default behavior. You have to tell
Ant exactly where to find the source and where to put the
output. Informal conventions have emerged over time, but
they haven't been codified into the product.

•Ant is procedural. You have to tell Ant exactly what to do
and when to do it. You have to tell it to compile, then
copy, then compress.

•Ant doesn't have a lifecycle. You have to define goals and
goal dependencies. You have to attach a sequence of tasks
to each goal manually.

Apache Maven
•Maven has conventions. It knows where your source code is
because you followed the convention. Maven's Compiler
plugin put the bytecode in target/classes, and it produces
a JAR file in target.

•Maven is declarative. All you had to do was create a
pom.xml file and put your source in the default directory.
Maven took care of the rest.

•Maven has a lifecycle which was invoked when you executed
mvn install. This command told Maven to execute a series of
sequential lifecycle phases until it reached the install
lifecycle phase. As a side-effect of this journey through
the lifecycle, Maven executed a number of default plugin
goals which did things like compile and create a JAR.

Answer / sethu

Dependency management in ant is nightmare. One should know complete knowledge(or depending on Dev. Team) to build a classpath. Maven solves all dependency issues itself via inheritence.

Versioning of artifacts in Ant nearly not possible(unless managing it independently). Maven by default does it.

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