Assuming that all the necessary imports are done, what will be the output of the following Java code? class parent { int x; void display() { System.out.println(x); } } class child extends parent { int y; void display() { System.out.println(y); } } class method_overriding { public static void main(String args[]) { child obj = new child(); obj.x=4; obj.y=5; obj.display(); } }Options435Compilation Error
Question
Assuming that all the necessary imports are done, what will be the output of the following Java code? class parent { int x; void display() { System.out.println(x); } } class child extends parent { int y; void display() { System.out.println(y); } } class method_overriding { public static void main(String args[]) { child obj = new child(); obj.x=4; obj.y=5; obj.display(); } }Options435Compilation Error
Solution
The output of the given Java code will be 5.
Here's the step by step explanation:
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A class named 'child' is created which extends the 'parent' class. This means that 'child' class inherits all the properties and methods of 'parent' class.
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In the 'child' class, the 'display()' method is overridden. Method overriding is a feature that allows a subclass to provide a specific implementation of a method that is already provided by its parent class.
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In the 'main' method, an object 'obj' of the 'child' class is created.
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The value of 'x' and 'y' for the 'obj' object is set to 4 and 5 respectively.
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When 'obj.display()' is called, the 'display()' method of the 'child' class is executed (not the 'parent' class) because of method overriding. This method prints the value of 'y', which is 5.
So, the output will be 5.
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