String str = "saveMe"
compareString(str)
def compareString(String str){
def str2 = "saveMe"
// using single quotes
println 'single quote string class' + 'String.class'.class
println str + ' == ' + str2 + " ? " + (str == str2)
println ' str = ' + '$str' // interpolation not supported
// using double quotes, Interpolation supported
println "double quoted string with interpolation " + "GString.class $str".class
println "double quoted string without interpolation " + "String.class".class
println "$str equals $str2 ? " + str.equals(str2)
println '$str == $str2 ? ' + "$str==$str2"
println '${str == str2} ? ' + "${str==str2} ? "
println '$str equalsIgnoreCase $str2 ? ' + str.equalsIgnoreCase(str2)
println '''
triple single quoted Multi-line string, Interpolation not supported $str ${str2}
Groovy has also an operator === that can be used for objects equality
=== is equivalent to o1.is(o2)
'''
println '''
triple quoted string
'''
println 'triple single quoted string ' + '''' string '''.class
println """
triple double quoted Multi-line string, Interpolation is supported $str == ${str2}
just like double quoted strings with the addition that they are multiline
'\${str == str2} ? ' ${str == str2}
"""
println 'triple double quoted string ' + """ string """.class
}
出力:
single quote string classclass java.lang.String
saveMe == saveMe ? true
str = $str
double quoted string with interpolation class org.codehaus.groovy.runtime.GStringImpl
double quoted string without interpolation class java.lang.String
saveMe equals saveMe ? true
$str == $str2 ? saveMe==saveMe
${str == str2} ? true ?
$str equalsIgnoreCase $str2 ? true
triple single quoted Multi-line string, Interpolation not supported $str ${str2}
Groovy has also an operator === that can be used for objects equality
=== is equivalent to o1.is(o2)
triple quoted string
triple single quoted string class java.lang.String
triple double quoted Multi-line string, Interpolation is supported saveMe == saveMe
just like double quoted strings with the addition that they are multiline
'${str == str2} ? ' true
triple double quoted string class java.lang.String