I am a beginner learning Java. I have two classes,
public class myClassA {
//It contains the main function
yourClass tc = new yourClass();
.... many codes...
public void printVariable()
{
// print here
}
}
class yourClass {
void I_AM_a_button_press() // function
{
// I want to call printVariable() in myClassA here, But how?
}
}
How can I call a method defined in one class from another?
You need to pass in an instance of myClassA into a constructor for yourClass, and store a reference to it.
class yourClass {
private myClassA classAInstance;
public yourClass(myClassA a)
{
classAInstance = a;
}
void I_AM_a_button_press() // function
{
classAInstance.printVariable();
}
}
You need to make a new instance of myClassA and call that method from that new object
void I_AM_a_button_press() // function
{
myClassA a = new myClassA();
a.printVariable();
}
Or you can pass an instance of myClassA in through a constructor
Try:
public void I_AM_a_button_press(){
myClassA a = new myClassA();
a.printVariable();
}
