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Trace: • formatting • jfc_intf_collection • class • wrapper_classes • stack_unwinding
java:jfc_intf_collection

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java:jfc_intf_collection [2021/04/05 07:17] – [1ος τρόπος - for()] gthanosjava:jfc_intf_collection [Unknown date] (current) – external edit (Unknown date) 127.0.0.1
Line 16: Line 16:
  
 public class StudentCollection { public class StudentCollection {
- 
-  private Collection<Student> students; 
      
-  public StudentCollection() { +  public static void iterateCollection(Collection<Student> students) {   
-    students = new LinkedList<Student>(); +    for(Student st: students) { 
-    populateList();+      System.out.println(st.toString()); 
 +    }
   }   }
      
-  public final void populateList() {+  public static void main(String args[]) { 
 +    Collection<Student> students; 
 +    students = new LinkedList<Student>();
     students.add(new Student("John", "Smith"));     students.add(new Student("John", "Smith"));
     students.add(new Student("Stanley", "Peters"));     students.add(new Student("Stanley", "Peters"));
Line 30: Line 31:
     students.add(new Student("Suzan", "Miles"));     students.add(new Student("Suzan", "Miles"));
     students.add(new Student("Mary", "Poppins"));     students.add(new Student("Mary", "Poppins"));
-  } +    iterateCollection(students);
-   +
-  public void iterateList() {   +
-    for(Student st: students) { +
-      System.out.println(st.toString()); +
-    } +
-  } +
-   +
-  public static void main(String args[]) { +
-    StudentCollection stl = new StudentCollection(); +
-    stl.iterateList();+
   }   }
 }  } 
Line 47: Line 38:
 ==== 2ος τρόπος - iterator ==== ==== 2ος τρόπος - iterator ====
  
-Μπορείτε να αντικαταστήσετε την ''iterateList'' με την παρακάτω υλοποίηση+Μπορείτε να αντικαταστήσετε την ''iterateCollection'' με την παρακάτω υλοποίηση
 <code java> <code java>
-  public void iterateList() {  +  public static void iterateCollection(Collection<Student> students) {  
     Iterator<Student> it = students.iterator();     Iterator<Student> it = students.iterator();
     while( it.hasNext() ) {     while( it.hasNext() ) {
java/jfc_intf_collection.1617607068.txt.gz · Last modified: 2021/04/05 06:17 (external edit)