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Constructor is a non-static method of a class.Which is used to initialize the values.
Classname(list of parameters / no parameters) { Statement 1; Statement 2; .. .. }
In the above syntax constructor name always class name.
In java language these constructers are classisfied into following types
1.No parametarized Constructor
2.Parametarized Constructor
3.Default Constructor
If any Constructor signature does not contain parameters is known as No Parametarized Constructor
Classname() { Statement 1; Statement 2; .. .. }
If any Constructor signature contains List of parameters is known as Parametarized Constructor
Classname(Datatype Variable1,Datatype Variable2, ....) { Statement 1; Statement 2; .. .. }
If any program does not contain any Userdefined Constructor(NoParametarized Constructor or Parametarized Constructor) the JVM creates one constructor is called Default Constructor.
Classname() { //Nobody }
1.No Parametarized Constructor with No return type with no Parametarized Method
2.No Parametarized Constructor with No return type with Parametarized Method
3.No Parametarized Constructor with return type with no Parametarized Method
4.No Parametarized Constructor with return type with Parametarized Method
5.Parametarized Constructor with No return type with no Parametarized Method
6.Parametarized Constructor with No return type with Parametarized Method
7.Parametarized Constructor with return type with no Parametarized Method
8.Parametarized Constructor with return type with Parametarized Method
import java.util.*; class Factorial { int n; Factorial() { Scanner s=new Scanner(System.in); System.out.println("Enter n value"); n=s.nextInt(); } void fact() { int x,f=1; for(x=1;x<=n;x++) { f=f*x; } System.out.println(f); } } class Main { public static void main(String args[]) { Factorial ff=new Factorial(); ff.fact(); } }
import java.util.*; class Factorial { int n; Factorial() { Scanner s=new Scanner(System.in); System.out.println("Enter n value"); n=s.nextInt(); } void fact(int x,int f) { for(x=1;x<=n;x++) { f=f*x; } System.out.println(f); } } class Main { public static void main(String args[]) { Factorial ff=new Factorial(); ff.fact(1,1); } }
import java.util.*; class Factorial { int n; Factorial() { Scanner s=new Scanner(System.in); System.out.println("Enter n value"); n=s.nextInt(); } int fact() { int x,f=1; for(x=1;x<=n;x++) { f=f*x; } return(f); } } class Main { public static void main(String args[]) { Factorial ff=new Factorial(); int p=ff.fact(); System.out.println(p); } }
import java.util.*; class Factorial { int n; Factorial() { Scanner s=new Scanner(System.in); System.out.println("Enter n value"); n=s.nextInt(); } int fact(int x,int f) { for(x=1;x<=n;x++) { f=f*x; } return(f); } } class Main { public static void main(String args[]) { Factorial ff=new Factorial(); int p=ff.fact(1,1); System.out.println(p); } }
import java.util.*; class Factorial { int n; Factorial(int m) { n=m; } void fact() { int x,f=1; for(x=1;x<=n;x++) { f=f*x; } System.out.println(f); } } class Main { public static void main(String args[]) { Scanner s=new Scanner(System.in); System.out.println("Enter n value"); int n=s.nextInt(); Factorial ff=new Factorial(n); ff.fact(); } }
import java.util.*; class Factorial { int n; Factorial(int m) { n=m; } void fact(int x,int f) { for(x=1;x<=n;x++) { f=f*x; } System.out.println(f); } } class Main { public static void main(String args[]) { Scanner s=new Scanner(System.in); System.out.println("Enter n value"); int n=s.nextInt(); Factorial ff=new Factorial(n); ff.fact(1,1); } }
import java.util.*; class Factorial { int n; Factorial(int m) { n=m; } int fact() { int x,f=1; for(x=1;x<=n;x++) { f=f*x; } return(f); } } class Main { public static void main(String args[]) { Scanner s=new Scanner(System.in); System.out.println("Enter n value"); int n=s.nextInt(); Factorial ff=new Factorial(n); int p=ff.fact(); System.out.println(p); } }
import java.util.*; class Factorial { int n; Factorial(int m) { n=m; } int fact(int x,int f) { for(x=1;x<=n;x++) { f=f*x; } return(f); } } class Main { public static void main(String args[]) { Scanner s=new Scanner(System.in); System.out.println("Enter n value"); int n=s.nextInt(); Factorial ff=new Factorial(n); int p=ff.fact(1,1); System.out.println(p); } }