5.3 Passing Arguments to a Method
Values that are sent into a method are called arguments. In Example of previous section, we defined a method displayLine that display a Line of 40 characters. To call this method we write the statement displayLine();. Now we will modify our displayLine method so that it can can accept arguments. Look at the following example :
/**
* This program demonstrate passing
* argument to a method.
*/
public class PassingArgument
{
public static void main(String[] args)
{
int x = 30;
System.out.println("Display line of 50 characters");
displayLine(50);
System.out.println("Display line of 30 characters");
displayLine(x);
}
/**
* The displayLine method accept an argument.
*/
public static void displayLine(int n)
{
for (int i = 1; i <= n; i++)
{
System.out.print("_");
}
System.out.println(" ");
}
}
Output :
Display line of 50 characters
__________________________________________________
Display line of 30 characters
______________________________
__________________________________________________
Display line of 30 characters
______________________________
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