Skip to content

handles division by 0 #133

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
Joset11-ar wants to merge 1 commit into
base: master
Choose a base branch
from
Open

handles division by 0 #133

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
6 changes: 6 additions & 0 deletions src/simplejavacalculator/Calculator.java
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -47,6 +47,9 @@ private Double calculateBiImpl() {
return num1 * num2;
}
if (mode.equals(BiOperatorModes.divide)) {
if (num2 == 0){
return NaN;
}
return num1 / num2;
}
if (mode.equals(BiOperatorModes.xpowerofy)) {
Expand Down Expand Up @@ -92,6 +95,9 @@ public Double calculateMono(MonoOperatorModes newMode, Double num) {
return Math.sqrt(num);
}
if (newMode.equals(MonoOperatorModes.oneDividedBy)) {
if(num == 0) {
return NaN; // This line of code handles division by zero to avoid infinity
}
return 1 / num;
}
if (newMode.equals(MonoOperatorModes.cos)) {
Expand Down
10 changes: 8 additions & 2 deletions src/simplejavacalculator/UI.java
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -299,8 +299,14 @@ public void actionPerformed(ActionEvent e) {
if (source == butabs)
writer(calc.calculateMono(Calculator.MonoOperatorModes.abs, reader()));

if (source == butEqual)
writer(calc.calculateEqual(reader()));
if (source == butEqual){
Double result = calc.calculateEqual(reader());
if (Double.isNaN(result)){ // it checks for math errors (like dividing by 0) and if there is one, it returns
text.setText("Invalid Operation"); // "invalid operation". If not, it returns the result
} else {
writer(result);
}
}

if (source == butCancel)
writer(calc.reset());
Expand Down