1 files changed, 18 insertions, 0 deletions
diff --git a/src/unitConverter/unit/BaseUnit.java b/src/unitConverter/unit/BaseUnit.java
index d4a1e9c..fe36c45 100755
--- a/src/unitConverter/unit/BaseUnit.java
+++ b/src/unitConverter/unit/BaseUnit.java
@@ -108,6 +108,24 @@ public final class BaseUnit extends AbstractUnit {
 		return new LinearUnit(this, 1 / divisor);
 	}
 
+	@Override
+	public boolean equals(final Object obj) {
+		if (!(obj instanceof BaseUnit))
+			return false;
+		final BaseUnit other = (BaseUnit) obj;
+		return Objects.equals(this.getSystem(), other.getSystem())
+				&& Objects.equals(this.getDimension(), other.getDimension());
+	}
+
+	@Override
+	public int hashCode() {
+		final int prime = 31;
+		int result = 1;
+		result = result * prime + this.getSystem().hashCode();
+		result = result * prime + this.getDimension().hashCode();
+		return result;
+	}
+
 	/**
 	 * Multiplies this unit by another unit.
 	 *