Java Abstract Window Toolkit (awt)

• FlowLayout: keep adding elements to GUI, maintaining position until reach next row: simple way to build window
• add(new Button("xyz")): element with text in button
• add("where", element): another way to build GUI where is “North”, “South”, “Center”, “East”, “West”
• if (" GCD: ".equals(o))
  o is value from button: generally different values pick out through if else or switch ##
  

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