Groovy - How to compare the string

Question

how to compare the string which is passed as a parameter   the following method is not working           String str    saveMe    compareString str    def compareString String str       def str2    saveMe      if str2    str          println  same       else        println  not same                 also tried    String str    India    compareString str    def compareString String str      def str2    india     if  str2    str          println  same      else       println  not same

User · Answer

use def variable  when you want to compare any String  Use below code for that type of comparison   def variable name   null  SQL query give you some return  Use function with return type def   def functionname def variablename    return variable name        if    variable name      true

User · Answer

String str    quot saveMe quot  compareString str   def compareString String str     def str2    quot saveMe quot        using single quotes   println  single quote string class     String class  class   println str            str2    quot     quot     str    str2    println   str          str      interpolation not supported       using double quotes  Interpolation supported   println  quot double quoted string with interpolation  quot     quot GString class  str quot  class   println  quot double quoted string without interpolation  quot     quot String class quot  class   println  quot  str equals  str2    quot    str equals str2     println   str     str2        quot  str   str2 quot    println    str    str2         quot   str  str2     quot     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  quot  quot  quot     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      quot  quot  quot    println  triple double quoted string      quot  quot  quot  string  quot  quot  quot  class     output  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

User · Answer

This line   if str2    str      Should be   if  str2    str       The    and   will give you a parse error  as they should only be used inside Groovy Strings for templating

User · Answer

This should be an answer     str2 equals  str     If you want to ignore case     str2 equalsIgnoreCase  str

User · Answer

In Groovy  null    null gets a true  At runtime  you won t know what happened  In Java     is comparing two references    This is a cause of big confusion in basic programming  Whether it is safe to use equals  At runtime  a null equals will give an exception  You ve got a chance to know what went wrong   Especially  you get two values from keys not exist in map s      makes them equal

User · Answer

If you don t want to check on upper or lowercases you can use the following method    String str    India   compareString str    def compareString String str      def str2    india     if  str2 toUpperCase      str toUpperCase            println  same      else       println  not same            So now if you change str to  iNdIa  it ll still work  so you lower the chance that you make a typo

User · Answer

The shortest way  will print  not same  because String comparison is case sensitive    def compareString        it     india     same     not same         compareString  India

[groovy] Groovy - How to compare the string?

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