JAVA AWT components

JAVA AWT components

• 1.
  Component Constructor Methods LabelLabel() Label(String) Label(String, int align) Align :Label.LEFT,Label.RIGHT, Label.CENTER) 1. void setText(String) 2. String getText() 3. void setAlignment(int) 4. int getAlignment() Button Button() Button (String str) 1. void setLabel(String) 2. String getLabel() TextField TextField() TextField(int width) Textfield(String) TextField(String, int width) 1. String getText() 2. void setText(String) 3. String getSelectedText() 4. void select(int startIndex, int endIndex) 5. boolean isEditable() 6. void setEditable(boolean) Check Box Checkbox() Checkbox(String) Checkbox(String, Boolean) 1. Boolean getState() 2. void setState(boolean) 3. String getLabel() 4. Void setLabel(String)
• 2.
  Compon ent Constructor Methods radio buttons CheckboxGroup() isused to create group of check boxex e.g. CheckBoxGroup cbg = new CheckBoxGroup() c1 = new Checkbox("check- 1“,cbg,true); c2 = new Checkbox("check- 2“,cbg,false); 1. Checkbox getSelectedCheckbox() 2. void setSelectedCheckbox(Checkbox obj)) List List() List(int noofitemvisible ) List(int noofitemvisible , boolean multipleselection) 1. void add(string) 2. void add(String,int) 3. String getSelectedItem() 4. int getSelectedIndex() 5. String[] getSelectedItems() 6. Int[] getSelectedIndexes() 7. Int getItemCount() 8. Void select(int) 9. String getItem(int)
• 3.
  Component Constructor Methods Choicelist (Dropdown List) Choice() 1. void add(String) 2. String getSelectedItem() 3. int getSelectedIndex() 4. int getItemCount() 5. void select(int) 6. void select(String) 7. String getItem(int) TextArea 1. TextArea() 2. TextArea(int numlines, int char) 3. TextArea(String) 4. TextArea(Sring, intnumlines, int char) 5. TextArea(String, int numlines, int nchar, int s bars) SCROLLBAR_BOTH, SCROLLBAR_NONE, SCROLLBAR_HORIZONTAL_O NLY, SCROLLBAR_VERTICAL_ONLY Supports all the methods of TextField & some additional method 1. void append(String) 2. void insert(string,int) 3. void replace(String, int startIndex, endIndex)
• 4.
  Component Constructor Methods ScrollBars 1. Scrollbar() :Create vertical scrollbar 2. Scrollbar(int style) Style: Scrollbar.HORIZONTAL Scrollbar.VERTICAL 3. Scrollbar(int style, int start, int thumb,int min, int max) 1. int getValue() 2. void setValue(int) 3. int getMinimum() 4. int getMaximum() 5. void setUnitIncrement(int) 6. void setBlockIncrement(int)