flutter switch case widget code example

Example 1: switch case in flutter

void main() { 
   var grade = "A"; 
   switch(grade) { 
      case "A": {  print("Excellent"); } 
      break; 
     
      case "B": {  print("Good"); } 
      break; 
     
      case "C": {  print("Fair"); } 
      break; 
     
      case "D": {  print("Poor"); } 
      break; 
     
      default: { print("Invalid choice"); } 
      break; 
   } 
}

Example 2: conditionalstatement in widget flutter

Container(
  color: Colors.white,
  child: ('condition')
  ? Widget1(...)
  : Widget2(...)
)

Example 3: flutter conditional statement

condition? Text("True"): null,