added return boolean to method formatFix and formatRaw.

src/TextOutput.java

@@ -5,7 +5,7 @@ import java.util.ArrayList;
  */
 public class TextOutput {
     private boolean formatRaw;
-    private int columnWidth = 10;
+    private int columnWidth = 20;
 
     /**
      * Method which checks in which way the paragraphs should be displayed. And then calls the corresponding
@@ -109,8 +109,9 @@ public class TextOutput {
     /**
      * Method which sets the Variable formatRaw to true.
      */
-    public void formatRaw() {
+    public boolean formatRaw() {
         formatRaw = true;
+        return true;
     }
 
     /**
@@ -119,9 +120,15 @@ public class TextOutput {
      *
      * @param length the maximum length of each paragraph that is allowed to be displayed when printing the text.
      */
-    public void formatFix(int length) {
-        formatRaw = false;
-        columnWidth = length;
+    public boolean formatFix(int length) {
+        if(length > 0) {
+            formatRaw = false;
+            columnWidth = length;
+            return true;
+        }
+        else {
+            return false;
+        }
     }
 
     /**