method overloading vs method overriding

Method overloading and method overriding are important topics in Java, Difference between method overloading and method overriding is given below.

Property	Method Overloading	Method Overriding
Method name	Must be same	Must be same
Argument type	Must be different(At least in order)	Must be same(Including Order)
Method Signature	Must be different	Must be same
Return Type	No restrictions	Must be the same until Java 1.4v but from Java 1.5v onwards co-variant return type allowed
private,static, final method	Can be overloaded	can be overrided
Access Modifier	No restrictions	The scope of access modifier cannot be reduced but we can increase
throw clause	No restrictions	If the child class method throws any exceptions then the parent class method must throw the same checked exception as is parent but there are no restrictions for unchecked exception
Method resolution	Always take care of the compiler based on the reference type	Always take care by compiler based on reference type
known as	Compile Time Polymorphism/ early binding/ static polymorphism	Runtime Polymorphism/Dynamic Polymorphism/Late binding

Note-

In overloading, we have to check only the method name(must be the same) and argument type (must be different). We don’t need to check any other thing like return type, access modifier.

But in overriding we have to check everything like method name, argument type, access modifier, return type, throws class, etc.

Consider the following method in parent class

    public void method(int x)throws IOException 

Now in the child class which of the following method we can take

public  void method(int i)  //Valid

public static void method(long i)  //Valid

  public static void method(int i)  //Invalid

 public  void method(int i)throws Exception  //Invalid

    public static abstract void method(double i)  //Invalid

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