/**
Compare two float arrays element-by-element for exact equality.
Floating‑point values must match exactly; even tiny rounding
differences will cause inequality. This is stricter than using
a tolerance-based comparison.
*/
public class CompareFloatArraysExact {
/**
Compares two float arrays and returns true only if all elements
are exactly equal. Direct == comparison checks for exact binary equality.
*/
public static boolean compareFloatArraysExact(float[] a, float[] b) {
// If lengths differ, arrays cannot be equal
if (a.length != b.length) {
return false;
}
// Compare each element directly
for (int i = 0; i < a.length; i++) {
if (a[i] != b[i]) {
return false; // Found mismatch → arrays differ
}
}
// All elements matched exactly
return true;
}
/**
Prints the comparison result.
*/
public static void printComparison(boolean result) {
if (result) {
System.out.println("Arrays are exactly equal.");
} else {
System.out.println("Arrays differ.");
}
}
public static void main(String[] args) {
// Example arrays
float[] floatArr1 = {
12314.9872f,
3.14f,
12387.91834f,
8873.579013f
};
float[] floatArr2 = {
12314.9872f,
3.14f,
12387.91834f,
8873.579013f
};
// Perform exact comparison
boolean result = compareFloatArraysExact(floatArr1, floatArr2);
// Output result
printComparison(result);
}
}
/*
run:
Arrays are exactly equal.
*/
