TP1 exercice 4.3

src/main/java/AbsoluteValue.java

+public class AbsoluteValue implements Formula {
+
+    private Formula formule;
+
+    public AbsoluteValue(Formula formule){
+        this.formule = formule;
+    }
+
+    public double asValue() {
+        return Math.abs(formule.asValue());
+    }
+
+    public String asString() {
+        return "|"+formule.asString()+"|";
+    }
+}

src/main/java/Minimum.java

+import java.util.Arrays;
+
+public class Minimum implements Formula{
+
+    private Formula[] formules;
+
+    public Minimum(Formula[] formules){
+        this.formules = Arrays.copyOf(formules, formules.length);
+    }
+
+    public double asValue() {
+        Double min = 0.0;
+        for(int i=0; i< formules.length; i++) {
+            if (i == 0){
+                min = formules[i].asValue();
+            }else{
+                min = Math.min(min,formules[i].asValue());
+            }
+        }
+        return min;
+    }
+
+    public String asString() {
+        Formula min = formules[0];
+        for(int i=1; i< formules.length; i++) {
+                min = Math.min(min.asValue(),formules[i].asValue());
+            }
+        }
+        return min;
+    }
+}

src/main/java/Power.java

+public class Power implements Formula{
+
+    private Formula formule;
+    private double power;
+
+    public Power(Formula formule, double power){
+        this.formule = formule;
+        this.power = power;
+    }
+
+    public double asValue() {
+        return Math.pow(formule.asValue(),power);
+    }
+
+    public String asString() {
+        return formule.asString()+"pow"+power;
+    }
+}

src/main/java/Square.java

+public class Square implements Formula{
+
+    private Formula formule;
+
+    public Square(Formula formule){
+        this.formule = formule;
+    }
+
+    public double asValue() {
+        return formule.asValue()*formule.asValue();
+    }
+
+    public String asString() {
+        return formule.asString()+"²";
+    }
+}

src/main/java/SquareRoot.java

+public class SquareRoot implements Formula{
+
+    private Formula formule;
+
+    public SquareRoot(Formula formule){
+        this.formule = formule;
+    }
+
+    public double asValue() {
+        return Math.sqrt(formule.asValue());
+    }
+
+    public String asString() {
+        return "√'"+formule.asString();
+    }
+}