Java Sending Multiple Parameters to Method

Question

Here is my Scenario   I ve got to call a method  Let the parameters be  Parameter1  Parameter2            Parameter N But the Parameters to be sent to the method might change in each case   Case 1  Only Parameter1 is sent  Case 2  A combination of Parameters is sent  Case 3  All Parameters are sent  What is the best way to achieve this in Java

User · Answer

Suppose you have void method that prints many objects;

public static void print( Object... values){
   for(Object c : values){
      System.out.println(c);
   }
}

Above example I used vararge as an argument that accepts values from 0 to N.

From comments: What if 2 strings and 5 integers ??

Answer:

print("string1","string2",1,2,3,4,5);

User · Answer

You can use varargs  public function yourFunction Parameter    parameters    See also  Java multiple arguments dot notation - Varargs

User · Answer

The solution depends on the answer to the question - are all the parameters going to be the same type and if so will each be treated the same   If the parameters are not the same type or more importantly are not going to be treated the same then you should use method overloading   public class MyClass     public void doSomething int i                      public void doSomething int i  String s                      public void doSomething int i  String s  boolean b                       If however each parameter is the same type and will be treated in the same way then you can use the variable args feature in Java   public MyClass      public void doSomething int    integers          for  int i   integers                                 Obviously when using variable args you can access each arg by its index but I would advise against this as in most cases it hints at a problem in your design   Likewise  if you find yourself doing type checks as you iterate over the arguments then your design needs a review

[java] Java: Sending Multiple Parameters to Method

Examples related to java

Examples related to methods