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source/Field.java

@@ -0,0 +1,52 @@
+package serie04;
+
+public class Field {
+	
+	private int size;
+	private Addition addition;
+	private Multiplication multiplication;
+	
+	public Field(int size, Addition addition, Multiplication multiplication) {
+		
+		if(addition.getSize() != size || multiplication.getSize() + 1 != size) {
+			throw new ArithmeticException();
+		}
+		
+		this.size = size;
+		this.addition = addition;
+		this.multiplication = multiplication;		
+	}
+	
+	public boolean checkDistributivity(int indexA, int indexB, int indexC) {
+		
+		int leftSide = multiplication.calculate(indexA, addition.calculate(indexB, indexC));
+		int rightSide = addition.calculate(multiplication.calculate(indexA, indexB), multiplication.calculate(indexA, indexC));
+		
+		return leftSide == rightSide;
+	}
+	
+	public boolean checkDistributivity() {
+		
+		for(int a = 0; a < this.size; a++) {
+			for(int b = 0; b < this.size; b++) {
+				for(int c = 0; c < this.size; c++) {
+					if (this.checkDistributivity(a, b, c) == false) return false;
+				}
+			}
+		}
+		
+		return true;
+	}
+	
+	public boolean verifyField() {
+		
+		if (this.multiplication.validateTable() == false) return false;
+		
+		if (this.addition.validateTable() == false) return false;
+		
+		if (this.checkDistributivity() == false) return false;
+		
+		return true;
+	}
+	
+}