groovy

gistfile1.groovy

[run groovy script by java command]
java -cp lib/groovy-all-1.8.0.jar groovy.ui.GroovyMain test.groovy
nohup java -Duser.timezone=Asia/Seoul -cp lib/*: groovy.ui.GroovyMain script/findBadGps.groovy >> system.log 2>> error.log &


[String Interpolation]
value = 6
println "The value is $value."
 
 
[loop]
 
for ( i in 1..10 ) {
	println i
}
for ( i in 0..<10 ) {
	println i
}
for ( i in [2, 3, 5, 7, 11] ) {
	println i
}
 
 
[each]
 
[2, 3, 5, 7, 11].each { println it }
[2, 3, 5, 7, 11].each { prime -> println prime }
[2, 3, 5].eachWithIndex { p, i -> println "$i: $p" }
[a:1, b:2, c:3].each { println "key: ${it.key}, value: ${it.value}" }
[a:1, b:2, c:3].each { k, v -> println "key: $k, value: $v" }
 
 
[regexp]
 
"Hello World!" ==~ /.*World.*/	// true
 
matcher = ( "email@address.com" =~ /(\w+)@([\w\.]+)/ )
matcher[0][1]    // Returns "email"
matcher[0][2]    // Returns "address.com"
 
 
[File]
 
new File("d:/").eachFile { println it }
new File("d:/").eachFileMatch(~/.*\.java/) { println it }
new File("test.txt").getText()
new File("test.txt").eachLine { println it }
 
 
[collection]
 
[2, 3, 5, 7, 11].find { it > 6 }
[2, 3, 5, 7, 11].findAll { it > 6 }
[2, 3, 5, 7].collect { it+1 }
[2, 3, 5, 7].join(" ")

def wordList = ['Apple', 'Banana', 'Cat']
def wordCountMap = wordList.collectEntries{ [(it):it.length()] }
 
 
[thread]
 
thread = Thread.start { doSomething(); }
 
 
[misc]
 
[1, 2, null, 4].each { println it?.class }
 
 
 
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