Passing a string array as a parameter to a function java

Question

I would like to pass a string array as a parameter to a function  Please look at the code below   String   stringArray     a    b    c    d    e     functionFoo stringArray     Instead of   functionFoo  a    b    c    d    e      but if I do this I am getting an error stating that convert String   into String  I would like to know if it is possible to pass the values like that or what is the correct way to do it

User · Answer

More than likely your method declaration is incorrect  Make sure the methods parameter is of type String array  String    and not simply String and that you use double quotes around your strings in the array declaration   private String   stringArray     a   b   c   d   e   f   g   h   t   k   k   k    public void myMethod String   myArray

User · Answer

I believe this should be the way this is done     public void function String    array            And the calling will be done like     public void test        String   stringArray     a   b   c   d   e   f   g   h   t   k   k   k   l   k        function stringArray

User · Answer

look at familiar main method which takes string array as param

User · Answer

I think  you forget to register the parameter as  String

User · Answer

How about   public class test       public static void someFunction String   strArray                do something             public static void main String   args            String   strArray   new String    Foo   Bar   Baz            someFunction strArray

User · Answer

please check the below code for more details  package FirstTestNgPackage   import java util ArrayList  import java util Arrays    public class testingclass        public static void main String   args  throws InterruptedException              TODO Auto-generated method stub         System out println  quot Hello quot                     int size   7          String myArray     new String size           System out println  quot Enter elements of the array  Strings      quot            for int i 0  i lt size  i                      myArray i     quot testing quot  i                    System out println Arrays toString myArray                              ArrayList lt String gt  myList   new ArrayList lt String gt  Arrays asList myArray                              System out println  quot Enter the element that is to be added  quot                     myArray   myList toArray myArray                    someFunction myArray                      public static void someFunction String   strArray                  System out println  quot in function quot            System out println  quot in function length quot  strArray length            System out println Arrays toString strArray                                      just copy it and past    your code   it will work   and then you understand how to pass string array as a parameter     Thank you

User · Answer

All the answers above are correct  But just note that you ll be passing the reference to the string array when you pass like this  If you make any modifications to the array in your called function  it will be reflected in the calling function also   There is another concept called variable arguments in Java which you can look into  It basically works like this  Eg -   String concat  String     strings             StringBuilder sb   new StringBuilder           for  int i   0  i  amp lt  strings length  i               sb append  strings  i          return sb toString            Here we can call the function like concat a b c d  or any number of params you want   More Info  http   today java net pub a today 2004 04 19 varargs html

User · Answer

Feel free to use this how ever you like         The extendStrArray   method will takes a number  n  and    a String Array  strArray  and will return a new array    containing  n  new positions  This new returned array    can then be assigned to a new array  or the existing    one to  extend  it  it contain the old value in the     new array with the addition n empty positions      private String   extendStrArray int n  String   strArray       String   old str array   strArray      String   new str array   new String  old str array length   n        for int i   0  i  lt  old str array length  i              new str array i    old str array i          end for loop      return new str array      end extendStrArray     Basically I would use it like this   String   students     Tom    Jeff    Ashley    Mary       4 new students enter the class so we need to extend the string array students   extendStrArray 4  students     this will effectively add 4 new empty positions to the  students  array

[java] Passing a string array as a parameter to a function java

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