Private variable with toString ()

by

First compilation error:

System.out.println ("Type: " + type + "\t" + "Make: " + make);

Product doesn’t have the make instance variable. Its subclass GolfHat declares the variable . Subclass inherits non-private members of a superclass, it doesn’t work the other way round.

Logical error :

if (type=="Glove"){

    }

This is an erroneous way of comparing String contents . Use equals() method instead. 

if ("Glove".equals(type)){

    }

More Related Contents:

  1. How to create a dynamic web project in Eclipse Juno
  2. Analzying a table of 1's and 0's using methods
  3. What should I set JAVA_HOME environment variable on macOS X 10.6?
  4. Using a custom truststore in java as well as the default one
  5. Display current time in 12 hour format with AM/PM
  6. keytool error Keystore was tampered with, or password was incorrect
  7. How to get a string between two characters?
  8. List versus ArrayList as reference type?
  9. How to replace special characters in a string?
  10. Spring Boot Jackson date and timestamp Format
  11. How to get unique random product in node Firebase?
  12. Android Firestore convert array of document references to List
  13. How do determine if an object is locked (synchronized) so not to block in Java?
  14. Eclipse reading stdin (System.in) from a file
  15. Minimum Spring version compatible with Java 11
  16. Why an abstract class implementing an interface can miss the declaration/implementation of one of the interface’s methods?
  17. java.lang.NoClassDefFoundError: org/hibernate/cfg/Configuration
  18. Split a String at every 3rd comma in Java
  19. Most efficient way to see if an ArrayList contains an object in Java
  20. Migrating from log4j to log4j2 – properties file configuration
  21. Image Orientation – Android
  22. What is a simple, effective way to debug custom Kafka connectors?
  23. Change JButton gradient color, but only for one button, not all
  24. javax.validation.ValidationException: HV000183: Unable to load ‘javax.el.ExpressionFactory’
  25. Android app in Eclipse: Edit text not showing on Graphical layout
  26. how to add a picture to a .docx document with Apache POI XWPF in java
  27. Best way of handling entities inheritance in Spring Data JPA
  28. clearing or set null to objects in java
  29. Android: java.lang.NullPointerException: Attempt to invoke virtual method ‘java.lang.String java.lang.Object.toString()’ on a null object reference
  30. How to get Java Version from batch script?

Leave a Comment