what is the difference between this and super keyword in java?
141730
As I said in the first line, the main difference between this and super in Java is that this represents current instance of a class, while super represent current instance of the parent class. ... Another use of this and super in Java is for accessing instance variables of a class and it's parent.
505218
The super keyword refers to superclass (parent) objects. It is used to call superclass methods, and to access the superclass constructor.
711144
keywords import is used to import or call the files from outsourse to our java programe while keyword extends is used to inherit the class in the particular class. Basically import indicate to call the classes and files,not to use them, But extends indicate to use the parent class in the child class.
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There are three types of variables in java: local, instance and static.
290347
Abstract and Generics are completely different things in Java syntax and semantics. abstract is a keyword, and indicates that a class does not contain a complete implementation, so cannot be instantiated. ... The use of generics indicates that aspects of a class can be parameterized.
192125
It probably means that you are trying to call a method when a property with the same name is available. If this is indeed the problem, the solution is easy. Simply change the method call into a property access.
963905
An extension method is still a static method. You can use it exactly as you'd use a normal static method. The only difference is that an extension method allows you to use the method in a way that looks like it's part of the type, so you can write: int result = stringValue.
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Java boolean keyword is used to declare a variable as a boolean type which represents only one of two possible values i.e. either true or false . In java, by default boolean variables are initialized with false.
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The difference is where the object stored in memory and its lifetime. Objects created with "new" is located on the heap and will be destroyed when explicitly called with delete.
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Reason: You are declaring the variable with the name you have already used for other declared variable. You are using the same name in enum type definition for one of the enum members.
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The only difference between static and member functions is that member functions always have the this pointer passed in automatically. simply if it is referred, static functions creates a single set of memory for itself and are meant for static data-members which are generally not changeable.
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Primitives are passed by value, i.e. a copy of the primitive itself is passed. Whereas for objects, the copy of the reference is passed, not the object itself. Primitives are independent data types, i.e. there does not exist a hierarchy/super class for them. Whereas every Object is descendent of class "Object".
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1) use == to compare primitive e.g. boolean, int, char etc, while use equals() to compare objects in Java. 2) == return true if two reference are of same object. Result of equals() method depends on overridden implementation.
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Well, static variables are variables that belong to a whole class rather than to a single instance of that class. "Transient" is actually just a notation to be used by the serialization machinery; it means "don't serialize this member."
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The main difference between a static and final keyword is that static is keyword is used to define the class member that can be used independently of any object of that class. Final keyword is used to declare, a constant variable, a method which can not be overridden and a class that can not be inherited.
890028
In general both equals() and “==” operator in Java are used to compare objects to check equality but here are some of the differences between the two: Main difference between . equals() method and == operator is that one is method and other is operator.
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They are actually two different words with different meanings. The word 'it' is the third person singular pronoun. On the other hand the word 'this' is a demonstrative pronoun. This is the main difference between the two words it and this.