revised loop edit

Main.java

 
     public static void main(String[] args ){
         Scanner scanner = new Scanner(System.in);
-        System.out.println("What is your name?");
-        String name = scanner.nextLine();
-        if (name.equals("Alice") || name.equals("Bob")) {
-            System.out.println("Hello " + name + "!");
+        
+        while (true) {
+            
+            System.out.println("What is your name?");
+            String name = scanner.nextLine();
+            if (name.equals("Alice") || name.equals("Bob")) {
+                System.out.println("Hello " + name + "!");
+                break;
+            } else {
+                System.out.println("You're not Alice or Bob!");
+            }
         }
-
     }
 }

package.bluej

 #BlueJ package file
-editor.fx.0.height=0
-editor.fx.0.width=0
-editor.fx.0.x=0
-editor.fx.0.y=0
-objectbench.height=101
+editor.fx.0.height=722
+editor.fx.0.width=800
+editor.fx.0.x=250
+editor.fx.0.y=236
+objectbench.height=164
 objectbench.width=776
 package.divider.horizontal=0.6
-package.divider.vertical=0.8007380073800738
-package.editor.height=427
+package.divider.vertical=0.6845018450184502
+package.editor.height=364
 package.editor.width=674
 package.editor.x=181
 package.editor.y=109