uppose we 7o classes de as Lass A { Public class B extends A { void m1(int x ){ f(x<0) System.out.print(“negative") Else if (x==0) System.out.print(“zero") Else System.out.print(“positive") Public void m1(int x ){ If (x<0) System.out.print("negative") Else if (x==0) System.out.print(“equal") Else { System.out.print(“positive") If (x==25) System.out.print(“Bang") }
uppose we 7o classes de as Lass A { Public class B extends A { void m1(int x ){ f(x<0) System.out.print(“negative") Else if (x==0) System.out.print(“zero") Else System.out.print(“positive") Public void m1(int x ){ If (x<0) System.out.print("negative") Else if (x==0) System.out.print(“equal") Else { System.out.print(“positive") If (x==25) System.out.print(“Bang") }
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
Related questions
Question
a.For each test case, is it directly reusable for class B? Write your answer in column 4 of the above table.
b.Do you need to consider more test cases in order to test class B more thoroughly? If so, add your test cases to the above table.
Transcribed Image Text:G.
Suppose we have two classes defined as follows:
Public class A {
Public class B extends A {
..
Public void m1(int x ) {
If (x<0)
System.out, print(“negative")
Else if (x=-0)
System.out,print(*zero")
Else
Public void m1(int x ) {
If (x<0)
System.out print(“negative")
Else if (x==0)
System.out.print(“equal")
Else {
System out print(“positive")
If (x==25)
System.out,print(“Bang")
}
}
System.out print(“positive")
}
}
Transcribed Image Text:Suppose we have already designed three test cases as shown below for class A.
Expected result
negative
Test cases
Input to method m1
Reusable for class B?
1
-2
2
zero
3
12
positive
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