Added code from the previous implementation of the Unit Converter

It includes:
 - a units database to store units
 - unit prefix classes
 - a unit converter GUI that accepts some unit math

NOTE: A lot of this code will be edited in the near future.

1 files changed, 64 insertions, 0 deletions

diff --git a/src/unitConverter/unit/DefaultUnitPrefix.java b/src/unitConverter/unit/DefaultUnitPrefix.java
new file mode 100755
index 0000000..1cce413
--- /dev/null
+++ b/src/unitConverter/unit/DefaultUnitPrefix.java
@@ -0,0 +1,64 @@
+/**
+ * Copyright (C) 2018 Adrien Hopkins
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package unitConverter.unit;
+
+import java.util.Objects;
+
+/**
+ * @author Adrien Hopkins
+ * @since 2019-01-14
+ */
+public final class DefaultUnitPrefix implements UnitPrefix {
+	private final double multiplier;
+
+	/**
+	 * Creates the {@code DefaultUnitPrefix}.
+	 * 
+	 * @param multiplier
+	 * @since 2019-01-14
+	 */
+	public DefaultUnitPrefix(final double multiplier) {
+		this.multiplier = multiplier;
+	}
+
+	@Override
+	public boolean equals(final Object obj) {
+		if (this == obj)
+			return true;
+		if (obj == null)
+			return false;
+		if (!(obj instanceof DefaultUnitPrefix))
+			return false;
+		final DefaultUnitPrefix other = (DefaultUnitPrefix) obj;
+		return Double.doubleToLongBits(this.multiplier) == Double.doubleToLongBits(other.multiplier);
+	}
+
+	@Override
+	public double getMultiplier() {
+		return this.multiplier;
+	}
+
+	@Override
+	public int hashCode() {
+		return Objects.hash(this.multiplier);
+	}
+
+	@Override
+	public String toString() {
+		return String.format("Unit prefix equal to %s", this.multiplier);
+	}
+}