Java

If you are getting "int cannot be dereferenced" error, it means that you are attempting to call a method or an attribute on a int type value. You should note that int is a primitive type and its variables do not store reference, they contain the actual value, so you cannot dereference using int primitive variable unlike wrapper class Integer reference variable. Above code … [Read more...] about Fix Error: int Cannot Be Dereferenced

In Java, we have 4 access modifiers that we can apply to a member variable and methods. But, how about Constructors? How these access modifiers can be used with constructors in Java? Let us see. We can very well use access modifiers with constructors in Java. These access modifiers work just the way they work on a member variable or member function. If you declare a … [Read more...] about Using Access Modifiers with Constructor in Java

Are you trying to run a Java based application or program and getting an error - "The system cannot find the file C:\ProgramData\Oracle\Java\javapath\java.exe"? It looks like the symlinks are not properly created when you've installed Java. When you install Java, it creates symlinks for java.exe, javaw.exe and javaws.exe under "C:\ProgramData\Oracle\Java\javapath\". If … [Read more...] about How to Fix – The system cannot find the file C:\ProgramData\Oracle\Java\javapath\java.exe

In this post, we will discuss the difference between constructor overloading and method overloading in Java. Constructor Overloading Writing more than 1 constructor in a class with a unique set of arguments is called as Constructor OverloadingAll constructors will have the name of the classOverloaded constructor will be executed at the time of instantiating an objectAn … [Read more...] about Difference Between Constructor Overloading and Method Overloading in Java

Constructor calling in Java is possible in multiple ways. In this post, we'll discuss each of those methods in detail. One thing we should remember is that constructor calling is only possible during the object creation. Once the object is created you won't be able to call the constructor. You can call a constructor in Java 3 different ways: Calling a constructor at the … [Read more...] about Constructor Calling in Java