4 files changed, 63 insertions, 0 deletions
diff --git a/sem_5/HLIN505_Java/HLIN505/src/TP2/Constante.java b/sem_5/HLIN505_Java/HLIN505/src/TP2/Constante.java
new file mode 100644
index 0000000..5d3cb70
--- /dev/null
+++ b/sem_5/HLIN505_Java/HLIN505/src/TP2/Constante.java
@@ -0,0 +1,11 @@
+package TP2;
+
+public class Constante extends Exp {
+	float val;
+	public float eval() {
+		return val;
+	}
+	public Constante(float x) {
+		val = x;
+	}
+}
diff --git a/sem_5/HLIN505_Java/HLIN505/src/TP2/Exp.java b/sem_5/HLIN505_Java/HLIN505/src/TP2/Exp.java
new file mode 100644
index 0000000..b465d4c
--- /dev/null
+++ b/sem_5/HLIN505_Java/HLIN505/src/TP2/Exp.java
@@ -0,0 +1,5 @@
+package TP2;
+
+public abstract class Exp {
+	public abstract float eval ();
+}
diff --git a/sem_5/HLIN505_Java/HLIN505/src/TP2/ExpComp.java b/sem_5/HLIN505_Java/HLIN505/src/TP2/ExpComp.java
new file mode 100644
index 0000000..30cfc2e
--- /dev/null
+++ b/sem_5/HLIN505_Java/HLIN505/src/TP2/ExpComp.java
@@ -0,0 +1,28 @@
+package TP2;
+
+public class ExpComp extends Exp{
+	private Exp val1;
+	private Exp val2;
+	private String op;
+	
+	public ExpComp (Exp v1,String op, Exp v2) {
+		val1= v1;
+		this.op = op;
+		val2=v2;
+	}
+	
+	public float eval() {
+		switch (op) {
+		case "*":
+			return val1.eval()*val2.eval();
+		case "/":
+			return val1.eval()/val2.eval();
+		case "+":
+			return val1.eval()+val2.eval();
+		case "-":
+			return val1.eval()-val2.eval();
+		default : 
+			return 0;
+		}
+	}
+}
diff --git a/sem_5/HLIN505_Java/HLIN505/src/TP2/Main.java b/sem_5/HLIN505_Java/HLIN505/src/TP2/Main.java
new file mode 100644
index 0000000..de235ce
--- /dev/null
+++ b/sem_5/HLIN505_Java/HLIN505/src/TP2/Main.java
@@ -0,0 +1,19 @@
+package TP2;
+
+public class Main {
+
+	public static void main(String[] args) {
+		Constante a = new Constante(5);
+		Constante b = new Constante(2);
+		Constante c = new Constante(3);
+		ExpComp e1 = new ExpComp(a,"+",b);
+		ExpComp e2 = new ExpComp(e1,"*",c);
+		ExpComp e3 = new ExpComp(new Constante(4),"*",e2);		
+		System.out.println(a.eval());
+		System.out.println(e1.eval());
+		System.out.println(e2.eval());
+		System.out.println(e3.eval());
+		
+	}
+
+}