Call a Class From another class

Question

I want to call class2 from class1 but class2 doesn t have a main function to refer to like Class2 main args

User · Answer

First create an object of class2 in class1 and then use that object to call any function of class2 for example write this in class1  class2 obj  new class2    obj thefunctioname args

User · Answer

If your class2 looks like this having static members  public class2       static int var   1       public static void myMethod                  some code            Then you can simply call them like  class2 myMethod    class2 var   1    If you want to access non-static members then you would have to instantiate an object   class2 object   new class2    object myMethod        non static method object var   1         non static variable

User · Answer

Suposse you have  Class1  public class Class1         Your class code above     Class2  public class Class2       and then you can use Class2 in different ways   Class Field  public class Class1      private Class2 class2   new Class2        Method field  public class Class1       public void loginAs String username  String password                 Class2 class2   new Class2             class2 invokeSomeMethod               your actual code           Static methods from Class2 Imagine this is your class2   public class Class2        public static void doSomething               from class1 you can use doSomething from Class2 whenever you want  public class Class1       public void loginAs String username  String password                 Class2 doSomething               your actual code

User · Answer

Class2 class2   new Class2      Instead of calling the main  perhaps you should call individual methods where and when you need them

User · Answer

Simply create an instance of Class2 and call the desired method   Suggested reading  http   docs oracle com javase tutorial java javaOO

[java] Call a Class From another class

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