finished the rest of the tests

MicroJava Compiler/src/ssw/mj/impl/Parser.java

@@ -73,10 +73,6 @@ public final class Parser {
 	 * Reads ahead one symbol.
 	 */
 	private void scan() {
-		if (la != null) {
-			System.out.println(la.val);
-		}
-
 		t = la;
 		la = scanner.next();
 		sym = la.kind;
@@ -284,6 +280,8 @@ public final class Parser {
 						scan();
 					} else if (sym == mminus) {
 						scan();
+					} else {
+						error(TOKEN_EXPECTED, "unexpected token. assignment token (=, +=, -=, *=, /=, %=), method call (\"(\"), increment (++) or decrement (--)");
 					}
 
 					check(semicolon);
@@ -314,7 +312,7 @@ public final class Parser {
 				case return_ -> {
 					scan();
 
-					if (sym == minus || firstStatement.contains(sym)) {
+					if (sym == minus || firstFactor.contains(sym)) {
 						Expr();
 					}
 
@@ -381,7 +379,6 @@ public final class Parser {
 	}
 
 	private void Expr() {
-		System.out.println();
 		if (sym == minus) {
 			scan();
 		}