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Added error checking for division by 0 on a branch called NewBranch. Benefits users so that they can't divide by 0 and get an error. #245

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Added error checking for division by 0 on a branch called NewBranch. Benefits users so that they can't divide by 0 and get an error. #245

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11 changes: 11 additions & 0 deletions .project
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Original file line number Diff line number Diff line change
Expand Up @@ -14,4 +14,15 @@
<natures>
<nature>org.eclipse.jdt.core.javanature</nature>
</natures>
<filteredResources>
<filter>
<id>1730486116205</id>
<name></name>
<type>30</type>
<matcher>
<id>org.eclipse.core.resources.regexFilterMatcher</id>
<arguments>node_modules|\.git|__CREATED_BY_JAVA_LANGUAGE_SERVER__</arguments>
</matcher>
</filter>
</filteredResources>
</projectDescription>
6 changes: 6 additions & 0 deletions src/com/jwetherell/algorithms/mathematics/Division.java
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Original file line number Diff line number Diff line change
Expand Up @@ -3,11 +3,13 @@
public class Division {

public static final long division(int a, int b) {
if (b == 0) throw new IllegalArgumentException("Divisor cannot be zero.");
long result = ((long) a) / ((long) b);
return result;
}

public static final long divisionUsingLoop(int a, int b) {
if (b == 0) throw new IllegalArgumentException("Divisor cannot be zero.");
int absA = Math.abs(a);
int absB = Math.abs(b);

Expand All @@ -22,6 +24,7 @@ public static final long divisionUsingLoop(int a, int b) {
}

public static final long divisionUsingRecursion(int a, int b) {
if (b == 0) throw new IllegalArgumentException("Divisor cannot be zero.");
int absA = Math.abs(a);
int absB = Math.abs(b);

Expand All @@ -38,6 +41,7 @@ public static final long divisionUsingRecursion(int a, int b) {
}

public static final long divisionUsingMultiplication(int a, int b) {
if (b == 0) throw new IllegalArgumentException("Divisor cannot be zero.");
int absA = Math.abs(a);
int absB = Math.abs(b);

Expand All @@ -55,6 +59,7 @@ public static final long divisionUsingMultiplication(int a, int b) {
}

public static final long divisionUsingShift(int a, int b) {
if (b == 0) throw new IllegalArgumentException("Divisor cannot be zero.");
int absA = Math.abs(a);
int absB = Math.abs(b);
int tempA, tempB, counter;
Expand All @@ -76,6 +81,7 @@ public static final long divisionUsingShift(int a, int b) {
}

public static final long divisionUsingLogs(int a, int b) {
if (b == 0) throw new IllegalArgumentException("Divisor cannot be zero.");
long absA = Math.abs(a);
long absB = Math.abs(b);
double logBase10A = Math.log10(absA);
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