Examples of java.awt.Component.requestFocus()

java.awt.Component.requestFocus()
Requests that this Component get the input focus, and that this Component's top-level ancestor become the focused Window. This component must be displayable, focusable, visible and all of its ancestors (with the exception of the top-level Window) must be visible for the request to be granted. Every effort will be made to honor the request; however, in some cases it may be impossible to do so. Developers must never assume that this Component is the focus owner until this Component receives a FOCUS_GAINED event. If this request is denied because this Component's top-level Window cannot become the focused Window, the request will be remembered and will be granted when the Window is later focused by the user.
This method cannot be used to set the focus owner to no Component at all. Use KeyboardFocusManager.clearGlobalFocusOwner() instead.
Because the focus behavior of this method is platform-dependent, developers are strongly encouraged to use requestFocusInWindow when possible.
Note: Not all focus transfers result from invoking this method. As such, a component may receive focus without this or any of the other {@code requestFocus} methods of {@code Component} being invoked. @see #requestFocusInWindow @see java.awt.event.FocusEvent @see #addFocusListener @see #isFocusable @see #isDisplayable @see KeyboardFocusManager#clearGlobalFocusOwner @since JDK1.0

            }


            sortingPolicy.setImplicitDownCycleTraversal(implicitEnabled);


            if (result != null) {
                result.requestFocus();
            }
        }


        public boolean isEnabled() {
            return true;

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     * Restores focus to the last subcomponent that had focus.
     */
    public void restoreSubcomponentFocus() {
        Component comp = getMostRecentFocusOwner();
        if (comp != null) {
            comp.requestFocus();
        } else {
            getContentPane().requestFocus();
        }
    }

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                Component result = ancestor.getFocusTraversalPolicy().getComponentAfter(ancestor, rightComponent);
                if (result == null) {
                    return;
                }


                result.requestFocus();
            }
        };
    }


    private static Action newFocusOutBackwardAction() {

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                Component result = ancestor.getFocusTraversalPolicy().getComponentBefore(ancestor, leftComponent);
                if (result == null) {
                    return;
                }


                result.requestFocus();
            }
        };
    }


    public static void installKeyboardActions(final JSplitPane splitPane) {

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            }


            sortingPolicy.setImplicitDownCycleTraversal(implicitEnabled);


            if (result != null) {
                result.requestFocus();
            }
        }


        public boolean isEnabled() {
            return true;

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            private static final long serialVersionUID = 1L;
        };
        
        add("Center", textHost);


        textHost.requestFocus();
    }


    /**
     * Add the given TextPanelListener to the listeners which will
     * receive update notifications from this TextPanel.

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    // request focus later so the editor can be used to enter value as soon as
    // made visible
    SwingUtilities.invokeLater(new Runnable() {
      public void run() {
        cellEditor.requestFocus();
      }
    });


    return cellEditor;
  }

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      ListSelectionModel rsm = table.getSelectionModel();
      int anchorRow = rsm.getAnchorSelectionIndex();
      table.editCellAt(anchorRow, PropertySheetTableModel.VALUE_COLUMN);
      Component editorComp = table.getEditorComponent();
      if (editorComp != null) {
        editorComp.requestFocus();
      }
    }
  }


  /**

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  // PENDING(fred) JDK 1.5 may have this method from superclass
  protected boolean requestFocusForVisibleComponent0() {
    Component visibleComponent = getVisibleComponent();
    if (visibleComponent.isFocusable()) {
      visibleComponent.requestFocus();
      return true;
    } else if (visibleComponent instanceof JComponent) {
      if (((JComponent)visibleComponent).requestDefaultFocus()) { return true; }
    }
    return false;

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            defaultComponent = cycleRoot.getFocusTraversalPolicy().getDefaultComponent(this);
        }
        if (defaultComponent == null) {
            return false;
        }
        defaultComponent.requestFocus();
        return true;
    }


    public boolean isManagingFocus() {
        return false;

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