Java Program to Allocate and Initialize Super Class Members using Constructor

This is a Java Program to Allocate and Initialize Super Class Members Using Constructor.

In a class hierarchy, constructors are called in order of derivation, from superclass to subclass.

Here is the source code of the Java Program to Allocate and Initialize Super Class Members Using Constructor. The Java program is successfully compiled and run on a Windows system. The program output is also shown below.

```
 class Parent
```
```
 {
```
```
     Parent(int a, int b)
```
```
     {
```

         System.out.println(" the super class constructor");

```
          int z = a + b;
```

         System.out.println("the super class method ");

         System.out.println("the sum is "+z);

```
     }
```
```
 }
```
```
public class Child extends Parent
```
```
{
```
```
    Child(int x)
```
```
    {
```
```
        super(12, 20);
```

        System.out.println("the sub class constructor ");

```
        System.out.println(x);
```
```
    }
```

    public static void main(String ... a)

```
     {
```
```
        Child obj = new Child(10);
```
```
     }
```
```
}
```

Output:

$ javac Child.java
$ java Child 
 
the super class constructor
the super class method 
the sum is 32
the sub class constructor 
10

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