The problem I am getting is that whenever I use powerItem this error pops up. Exception in thread “main” java.lang.IndexOutOfBoundsException: Index 10 out of bounds for length 1.However when I use HealthItem it heals health properly.

I tried to do change index of powerIndex but it doesnt work only the HealthIndex is working properly. I was expecting that when I use healthItem it should restore health which it does but the powerItem doesnt and causes an error.Here is my code:

`public void displayInventory(Characters objCharacters){
    if(inventoryForHealth.isEmpty() && inventoryForPower.isEmpty()) {
        System.out.println("nYour inventory is empty.");
    }else {
        while(true) {
            System.out.println("Select The Item");
            System.out.print("0. Exit Inventory, ");
            index = 1;
            for (String string : inventoryForHealth) {
                System.out.print(index+". "+string+", ");
                index++;
            }
            for (String string2 : inventoryForPower) {
                System.out.print(index+". "+string2+", ");
            }
            selectItem = obj.nextInt() ;    
            healthIndex = selectItem - 1;
            powerIndex = selectItem - 1 - inventoryForHealth.size();
            if(selectItem == 0){
                return;
            }
            if(selectItem > 0 && selectItem <= inventoryForHealth.size()) {
                removeHealthItem(healthIndex);  
                if(health >= maxHealth) {
                    System.out.println("Health is already full.");
                }
                break;
            }else if(selectItem > inventoryForHealth.size() && selectItem <= (inventoryForHealth.size() + inventoryForPower.size()) ){
                removePowerItem(powerIndex);
                if (power >= maxPower) {
                    System.out.println("Power is already full.");
                }break;
            }else {
                System.out.println("nInvalid Choice");
            }
        }
    }
}`

These are the otherMethods used in this

public void removeHealthItem(int index) { if(index >= 0 && index < inventoryForHealth.size() && health < maxHealth) { int healingPoints = healthHealPoints.get(index); healHealth(healingPoints); inventoryForHealth.remove(index); healthHealPoints.remove(index); } } public void removePowerItem(int index) { if(index >= 0 && index <= inventoryForPower.size() && power < maxPower) { int healingPoints2 = powerHealPoints.get(index); healPower(healingPoints2); inventoryForPower.remove(index); powerHealPoints.remove(healingPoints2); } }