In Java there are four types of Inheritance
1) Single Inheritance (one super class)
2) Multilevel Inheritance (several super class)
3) Hierarchical Inheritance (one super class many sub-classes)
4) Multiple Inheritance (derived from derived class)
Single Inheritance Hierarchical Inheritance
Multilevel Inheritance Multiple Inheritance
________________________________________________
public class Multi {
int multi1;
int multi2;
multi(int a, int b){ // constructor method
multi1 = a;
multi2 = b;
}
int result(){ //definition of method
return(multi1 * multi2);
}
}
class multi1 extends multi{
int multi3;
multi1(int a, int b, int c){ // constructor method
super(a,b); // super keyword only used in constructor method
multi3 = c;
}
int result1(){ //definition of method
return(multi1 * multi2 * multi3);
}
}
class total{ // class with main method
public static void main(String [] args){
multi1 multii = new multi1(1,2,3); //creating object
System.out.println("Total will be: " +multii.result1());
}
}
__________________________________________
Output:
Total will be: 6
________________________________________
Above example is just Single Inheritance example !
1) Single Inheritance (one super class)
2) Multilevel Inheritance (several super class)
3) Hierarchical Inheritance (one super class many sub-classes)
4) Multiple Inheritance (derived from derived class)
Single Inheritance Hierarchical Inheritance
Multilevel Inheritance Multiple Inheritance
________________________________________________
public class Multi {
int multi1;
int multi2;
multi(int a, int b){ // constructor method
multi1 = a;
multi2 = b;
}
int result(){ //definition of method
return(multi1 * multi2);
}
}
class multi1 extends multi{
int multi3;
multi1(int a, int b, int c){ // constructor method
super(a,b); // super keyword only used in constructor method
multi3 = c;
}
int result1(){ //definition of method
return(multi1 * multi2 * multi3);
}
}
class total{ // class with main method
public static void main(String [] args){
multi1 multii = new multi1(1,2,3); //creating object
System.out.println("Total will be: " +multii.result1());
}
}
__________________________________________
Output:
Total will be: 6
________________________________________
Above example is just Single Inheritance example !
