FAQ: Learn Java: Methods - Review


This community-built FAQ covers the “Review” exercise from the lesson “Learn Java: Methods”.

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This exercise can be found in the following Codecademy content:

Learn Java

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1 Like

In step one of this activity, where it asks you to make a checkBalance function, it throws an error that says, “Oops! The test returned an error. Maybe you have a syntax error, or a typo. See full error.” When I click “See full error” it says, “Cannot read property “0” of undefined.” What does this mean? What do I have to do to fix the error?

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Why on method deposit is VOID and on method withdraw is INT

  public **void** deposit(int amountToDeposit){
    balance = amountToDeposit + balance;
    System.out.println("You just deposited " + amountToDeposit);
  public **int** withdraw(int amountToWithdraw){
    balance = balance - amountToWithdraw;
    System.out.println("You just withdrew " + amountToWithdraw);
    return amountToWithdraw;