Solved

Consider the Problem of Displaying a Pattern of Asterisks Which

Question 64

Multiple Choice

Consider the problem of displaying a pattern of asterisks which form a triangle of height h, as shown below for h = 4: *
**
***
****
***
**
*
The problem can be solved with the recursive helper method shape below. The method takes two parameters: low and high. It first prints a row of asterisks corresponding to parameter low. If high is higher than low, it recursively generates a shape in which low is incremented by one, and then prints another row of low asterisks. Select a statement to complete method triangle, so that the helper method shape is invoked with the correct arguments in order to display a triangle with parameter height.
Public static void shape(int low, int high)
{
If (high >= low)
{
AsterisksRow(low) ;
If (high > low)
{
Shape(low + 1, high) ;
AsterisksRow(low) ;
}
}
}
Public static void asterisksRow(int n) // Method to display a row of n stars
{
For (int j = 1; j < n; ++j)
{
System.out.print("*") ;
}
System.out.println("*") ;
}
Public static void triangle(int height)
{
If (height > 1)
{
_______________________
}
}


A) shape(0, height) ;
B) shape(0, height - 1) ;
C) shape(1, height) ;
D) shape(0. height - 1) ;

Correct Answer:

verifed

Verified

Unlock this answer now
Get Access to more Verified Answers free of charge

Related Questions

Unlock this Answer For Free Now!

View this answer and more for free by performing one of the following actions

qr-code

Scan the QR code to install the App and get 2 free unlocks

upload documents

Unlock quizzes for free by uploading documents