Final finish

src/Complex.java

@@ -8,57 +8,49 @@ public class Complex {
     real = 0;
     imag = 0;
   }
-
-
   public Complex(double r, double i)
   {
     real = r;
     imag = i;
-    
   }
-
   public double imag()
   {
     return imag;
   }
-
   public double real()
   { 
     return real;
   }
-
   public double magnitude()
   {
-    return Math.sqrt(this.real() * this.real() + this.imag() * this.imag());
+    return Math.sqrt(Math.pow(real, 2) + Math.pow(imag, 2));
   }
 
   public double argument()
   {
-    return Math.atan2(this.imag(),this.real());
+    return Math.atan2(imag, real);
   }
   public String toString()
   {
     String str = "";
     if (this.real() != 0) {
       str = str + this.real();
-
-      if (this.imag > 0) {
-        str = str + " + ";
-      } 
-
       if (this.imag < 0) {
         str = str + " - ";
       }
+      if (this.imag > 0) {
+        str = str + " + ";
+      } 
     } 
     if (this.imag != 0) {
       str = str + "j" + Math.abs(this.imag());
     }
     return str;
   }
-  public Complex add(Complex complex)
+  public Complex add(Complex complexNum)
   {
-    Complex answervalue = new Complex(this.real() + complex.real(),this.imag() + complex.imag());
-    return answervalue;
+    Complex value = new Complex(this.real() + complexNum.real(),this.imag() + complexNum.imag());
+    return value;
   }