java - What is "Choose a number or apply filter (format: [groupId:]artifactId, case sensitive contains)" -

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i new in maven , tried creating maven project using command line. when run mvn archetype:generate command line first thing after completion of processes were:

choose number or apply filter (format: [groupid:]artifactid, case sensitive contains)

i know can skip these pressing enter. wanted know these lines are? googled there no crisp , simple answer given. questions are:

  1. why , how choose number, how related filter (as filter , number in or).
  2. we can skip these why given maven..
  3. why number 630 displayed.
  4. is there default value assigned when skip these lines pressing enter.[this more important]

looking sharp , crisp answer or link.

update : these few lines before "choose number.." appears.. 

1380: remote -> tr.com.lucidcode:kite-archetype (a maven archetype allows u sers create fresh kite project) 1381: remote -> uk.ac.rdg.resc:edal-ncwms-based-webapp (-) 1382: remote -> uk.co.nemstix:basic-javaee7-archetype (a basic java ee7 maven ar chetype) 1383: remote -> us.fatehi:schemacrawler-archetype-maven-project (-) 1384: remote -> us.fatehi:schemacrawler-archetype-plugin-command (-) 1385: remote -> us.fatehi:schemacrawler-archetype-plugin-dbconnector (-) 1386: remote -> us.fatehi:schemacrawler-archetype-plugin-lint (-) **choose number or apply filter (format: [groupid:]artifactid, case sensitive co ntains): 630:** choose org.apache.maven.archetypes:maven-archetype-quickstart version: 1: 1.0-alpha-1 2: 1.0-alpha-2 3: 1.0-alpha-3 4: 1.0-alpha-4 5: 1.0 6: 1.1 choose number: 6:

command mvn archetype:generate:

generates new project archetype, or updates actual project if using partial archetype. if project generated, generated in directory corresponding artifactid. if project updated partial archetype, done in current directory.

there more 1000 archetype available in maven, when ever select 1 of them generate , sample maven project you, include dependencies in pom.xml default.

630 default , : remote -> org.apache.maven.archetypes:maven-archetype-quickstart


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