[SOLVED] passing array between main and method,vice-versa

[blueyan]

my problem is , how to pass an array from main to method , then method send back to main again ?

here is my question, how do i pass this array of user input result to another method ? this method called max method , which determine the maximum value within the array...example , user input " 1 , 4 , 5 " , then array will be passed from main to max method , max method will check which integer is the highest then send back to main... i really do not have any idea about this , please help me.... thank and appreciate for the view and reply !!

public static void main(String[] args) {

       int [] value = new int [3];
       
       for (int i =0;i<value.length;i++){
       
        String number_string =JOptionPane.showInputDialog("please enter an integer");   
        int number =  Integer.parseInt(number_string);
           
        value[i]=number;   

       }
    
    }

public static int max ( ) {

????

}

[Fubarable]

It's a lot easier than you think. What do you do when you want to pass a Scanner object to another method? You use a parameter like so:

public void myMethod(Scanner scan)
{
  //... here use scan in method
}

and I call it like so:

public static void  main(String[] args)
{
  Scanner scan = new Scanner(System.in);
  myMethod(scan);
  //..... more code
}

So you do essentially the same for an array. What's its type? Well if an Array of ints, its type is int[], if Dates its Date[]. So in my method declaration section, I'd have

void myMethod(int[] intArray)
{
  for(int i : intArray)
  {
    //.... do something here
  }
}

[blueyan]

hmm ,,,i dont get it .... i just started to learn array yesterday....still not yet master , so i dont understand what do you mean =_= """ ...sorry...

so i specific my question.... how to declare max method in Main method which to be passed to max method ..( to pass user input results ? )

[Supamagier]

public static void main(String[] args) {
int[] intArray = new int[10];
intArray = myMethod(intArray);
}
private int[] myMethod(int[] intArray) {
// Do stuff
return intArray;
}

[blueyan]

ok.... i followed Supamagier instruction ... but there is still an error

import javax.swing.JOptionPane;
public class test {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
       
       int [] value = new int [5];
          
       for (int i =0;i<value.length;i++){
       
        String number_string =JOptionPane.showInputDialog("please enter integer");   
        int number =  Integer.parseInt(number_string);
        value[i]=number;  
       }
    
       int highest = myMethod(value);
    
    }
public int myMethod(int[] value) {
 
        int max = value[0];
        for (int i = 1; i < value.length; i++) {
        if (max < value[i])
        max = value[i];
     }

return max;
}

}

error with int highest = myMethod(value); ,
error message,non-static method myMethod(int[]) cannot be referenced from a static content.

[blueyan]

haha , i just found out the solution , careless problem...forget to add "static" in second method.... thank to Supamagier and Fubarable who tried to help me ... problem solved , thread closed...