The code does not work JAVA

Question

CODE:
package Item;

import java.util.ArrayList;
import java.util.Scanner;
import java.io.FileNotFoundException;
import java.io.PrintWriter;
import java.util.List;
import java.io.File;

class List {

List <Integer> list = new ArrayList <Integer> ();

private int [] numbers;
private static int max. Capacity;
private int size;

List (int max Capacity, int size) {

numbers = new int [maxCapacity];
this.maksCapacity = maxCapacity;
this.size = size;
}

/ * public int getLiczby () {

return this.numbers [10];
}
public int getMaksPoamnosc () {

return this.maksCapacity;
}
public int getSize () {

return this. size;
} * /

public int addElement (int j) {
for (int i = 0; i <maxCapacity; ++ i) {
if (maxCapacity == 0) {

}
}

return max. Capacity; //?
}

public int find (int search number) {
        boolean number = false;
        for (int i = 0; i <size; i ++) {
            if (numbers [i] == number searched) {
                number = true;
                return i;

            }

        }
        if (number = false) {
            return -1;
        }
return search number;
    }

public String write () {
return "size:" + size + "capacity" + max. Capacity + "elements:";
}

public int deleted First (int given number) {
for (int i = 0; i <size; i ++) {
            if (numbers [i] == number given) {
                numbers [i] = 0;
            }

        }
return givenNumber;
}

public int deleted Repetition () {
for (int i = 0; i <10; i ++) {
for (int j = 0; j <10; j ++) {
if (the number of [i] == number [j]) {
numbers [i] = 0;
}
}
}
return max. Capacity;

}
public int versus () {
for (int i = size; i> = 0; i ++) {
return numbers [i];
}
return max. Capacity;
}

public static void main (String [] args) / * throws FileNotFoundException * / {

List l = new List (max Capacity, max Capacity);

   / * File file = new File ("List.txt");
    Scanner scanner = new Scanner (file);

    String line1 = scanner.nextLine ();
 

Answer 1

Ivan You did lots of mistakes in your program. I think you need to clear your basic first. If you will ignore basics you can't do big program like this

1 - Why you have declared variable like this.

max. Capacity

Do you know there should not be space in variable?

2 - List (int max Capacity, int size) {

check above line there is also space in variable maxCapacity.

3 - public int find (int search number)

why there is space in variable searchNumber

4 - return search number; //wrong

5 - public int deleted First (int given number) //wrong parameter declaration

6 - if (the number of [i] == number [j]) {//Wrong.

what is 'the number of'

Answer 2

https://code.sololearn.com/cG7knRElFRg1/#java

Write a List class that will store a list of integers. This class should have the following private fields:
• int [] numbers; - table in which numbers will be stored,
• int capacity; - the maximum number of elements that can be stored,
• int size; - current number of stored items.
The List class should also have the following methods:
• a constructor with a capacity parameter that allocates memory for
array of numbers and sets values ​​of other class fields;
• the addElement method, which takes exactly one element - an integer that is added to the list; in case the list is full should
an error message appears;
• find method, whose only parameter should be the searched number, while the result of the position of the given number in the list (counting from 0) or -1, when the numbers
is not on the list;
• a parameterless write method that prints information about the list, including its
size, capacity and list of stored items;
• deletePirst method, which removes the first occurrence given as a parameter
number if it is on the list, i.e. if the number given is more than one
than once, only its first occurrence is deleted;
21
• deleteRepeat method, which removes all element repetitions on
leaves, i.e. after its completion, the list should not be repeated
numbers;
• the reverse method, which reverses the order of the items stored in the list;
• method save.ToPlik, which saves the contents of the list to a text file whose name should be given as the first parameter;
For example, after completing the following fragment:
final int N = 10;
List l = new List (N);
for (int i = 0; i <N / 2; ++ i) {
l. add Element ((1 << i));
}
l.dodajElement (2);
l.dodajElement (8);
l.pisz ();
l.usunPierwszy (2);
l.pisz ();
for (int i = 0; i <N / 2; ++ i) {
l. add Element ((1 << i));
}
l.pisz ();
System.out.println ("After removing repetitions:");
l.usunPowtorzenia ();
l.pisz ();
The screen should display:
List:
Capacity: 10