update example file

Examples/FieldAccessAndMethodCalls.java

@@ -1,4 +1,4 @@
-public class FieldAccessAndMethodCalls {
+class FieldAccessAndMethodCalls {
     public static void main(String[] args) {
         Class1 c1 = new Class1();
         int i = c1.c2.c3.m3(1).m2().m1();
@@ -6,10 +6,10 @@ public class FieldAccessAndMethodCalls {
     }
 }
 
-public class Class1{
+class Class1{
     int i1;
     Class2 c2;
-    public Class1{
+    public Class1() {
         this.c2 = new Class2();
     }
     public int m1(){
@@ -17,24 +17,21 @@ public class Class1{
     }
 }
 
-public class Class2{
+class Class2{
     int i2;
     Class3 c3;
-    public Class3{
+    public Class2(){
         this.c3 = new Class3();
     }
     public Class1 m2(){
-        Class1 c1 = new Class2();
+        Class1 c1 = new Class1();
         c1.i1 = i2;
         return c1;
     }
 }
 
-public class Class3{
+class Class3{
     int i3;
-    public Class3(int i){
-        this.i1 = i;
-    }
     public Class2 m3(int i){
         Class2 c2 = new Class2();
         c2.i2 = i;