Page 278 - ComputerScience_Class_11

53 else

54 System.out.println("Invalid input");
55 ob.print();
56 }
57 }

The output of the preceding program is as follows:

BlueJ: Terminal Window - Java
Options

Enter Name of Customer : Ajay
Enter account number of Customer : 20102
Enter type of account of Customer : s
Enter the balance amount in the account (minimum amount 1000/-) : 3000
Enter (D)eposit/(W)ithdraw:
D
Enter the amount to deposit:
2000
Customer Name:Ajay
Account No.:20102
Balance:5000
Type of Account:s

Let’s Revisit

♦ Methods contain specific tasks which are invoked only when they are required.
♦ The first line of any method definition is known as the method header or method prototype.
♦ The name of the method along with its parameter list in the method header is called the method signature.
♦ There has to be some restriction on the accessibility of the methods as they can also be accessed by other methods, same or
different class.
♦ A function can be used only when it is called from another function.
♦ Return Statement statement is used when the function is returning some value.
♦ Every method should have a name, by which it can be called from the same class or different classes.
♦ Parameter list is a list of the variables which is sent to the method for execution.
♦ The actual values that are passed directly or through the variables to the respective method at the time of calling the method
are called the actual parameters.
♦ The values sent by the calling method are received in the parameters described in the method are called formal parameters.
♦ After declaring and defining a method, we must call it or invoke it so that the job assigned to the method (statements provided
in the method) can be executed.

276 Touchpad Computer Science (Ver. 3.0)-XI