How does super work in the case of the code below? (java)

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public class Magenta
{
    public void m3()
    {
        System.out.println("Magenta 3");
        m2();
    }
    public void m2()
    {
        System.out.println("Magenta 2");
    }
}
public class Yellow extends Magenta
{
    public void m1()
    {
        System.out.println("Yellow 1");
        super.m2();
    }
    public void m2()
    {
        System.out.println("Yellow 2");
    }
}
public class Key extends Yellow
{
    public void m2()
    {
        System.out.println("Key 2");
    }
}

Why is it that if I construct a Key object

(Using Yellow var1 = new Key();) and

call m1();,

why doesn't it print Yellow1\nYellow2? Instead it prints Yellow 1\nMagenta 2,

which suggest that the call to super on the Key object is actually not called on the Key object.

I'm confused as to how super works here I thought it'd make it be interpreted as key's superclass,

which is Yellow, would be calling m2();.

When you are calling m1() on a Key instance, the method m1 of class Yellow is called as it is inherited by the Key class and not overridden inside it.

So if you look inside m1() of Yellow, it will first print "Yellow 1" and then it will call the superclass Magenta's method m2() which will print "Magenta 2".

Here is a visualization:

How does super work in the case of the code below? (java), public class Magenta { public void m3() { System.out.println("Magenta 3"); m2(); } public void m2() { System.out.println("Magenta 2"); } The super keyword in java is a reference variable that is used to refer parent class objects. The keyword “super” came into the picture with the concept of Inheritance. It is majorly used in the following contexts: 1. Use of super with variables: This scenario occurs when a derived class and base class has same data members. In that case

You;re instantiating an object of class Yellow and calling m1 method. This works as follows:

System.out.println("Yellow 1");
super.m2();

So it prints "Yellow 1" and calls m2 of superclass, which is Magenta, so:

System.out.println("Magenta 2");

Super Keyword in Java, The super keyword in java is a reference variable that is used to refer parent class objects. The keyword In that case there is a possibility of ambiguity for the JVM. We can understand it more clearly using this code snippet:. Super Keyword in Java. The super keyword in Java is a reference variable which is used to refer immediate parent class object.. Whenever you create the instance of subclass, an instance of parent class is created implicitly which is referred by super reference variable.

Super keyword denotes object of Super Class ,

So when you call super.m2() its calls goes to Super class method m2();

if you call m2() method of yellow class simply call m2() without using super.

Super Keyword in Java

The super keyword in java is a reference variable that is used to refer parent class objects.

Use of super with variables: This scenario occurs when a derived class and base class has same data members.

Use of super with methods: This is used when we want to call parent class method.

Super keyword in java with example, The super keyword in java refers to the objects of immediate parent class. By Chaitanya Singh | Filed Under: OOPs Concept Before learning super keyword you must have the knowledge of inheritance in Java so that you can understand In case of method overriding, these terminologies are used: Overridden method:� You call super () to specifically run a constructor of your superclass. Given that a class can have multiple constructors, you can either call a specific constructor using super () or super (param,param) oder you can let Java handle that and call the standard constructor.

Using the Keyword super (The Java™ Tutorials > Learning the Java , A browser with JavaScript enabled is required for this page to operate properly. You can also use super to refer to a hidden field (although hiding fields is Here is the MountainBike (subclass) constructor that calls the superclass constructor and then adds initialization code of its own: In fact, this is the case. It is called� Compile and execute the above code using the following syntax. javac Super_Demo java Super On executing the program, you will get the following result − Output. This is the display method of subclass This is the display method of superclass value of the variable named num in sub class:10 value of the variable named num in super class:20

Java Programming/Keywords/super, Only public and protected methods can be called by the super keyword. < method-name>([zero or more arguments]);. or: Code listing 1: SuperClass.java. Edureka’s Java J2EE and SOA training and certification course is designed for students and professionals who want to be a Java Developer. The course is designed to give you a head start into Java programming and train you for both core and advanced Java concepts along with various Java frameworks like Hibernate & Spring.

Java super Keyword (With Examples), In this tutorial, we will learn about the super keyword in Java with the help of examples. The Java super keyword is used in subclasses to access superclass members (attributes, So, why use redundant code if the compiler automatically invokes super()?. It is Working of super in case of parameterized constructor. When Java reaches a break keyword, it breaks out of the switch block. This will stop the execution of more code and case testing inside the block. When a match is found, and the job is done, it's time for a break. There is no need for more testing.