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4 { Scanner sc= new Scanner(System.in);
5 int n,i=1,p=1;
6 while(i<=5)
7 {
8 System.out.print("Enter a number : ");
9 n=sc.nextInt();
10 if(n%2==1)
11 { i++; continue; }
12 p=p*n;
13 i++;
14 }
15 System.out.println("Product of even numbers "+ p);}
16 }
You will get the following output:
return
In Java, when a method is called, the control is transferred from the caller module to the method which has
to return back to the caller module after the execution of the method. This is done by the return statement.
If the method does not return any value, we have to use the keyword "void" else the datatype of the returned
value must be specified.
Syntax:
return_data_type function_name(arguments)
{
Job;
return statement;
}
Write a program to print the square of a number taken as parameter using a function int
Program 13
square(int).
1 class function
2 {
3 int square(int n)
4 {
Iterative Constructs in Java 209

