`Int A =0;` on pressing the button can we change `A=‘name’;`?

Answer

No. In Dart, which is statically typed, you cannot change the type of a variable after it's declared.

int A = 0

String

Example

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int A = 0;

// ❌ Compile-time error — type mismatch
A = 'name'; // Error: A value of type 'String' can't be assigned to a variable of type 'int'

Options If You Need Dynamic Types

Option 1: Use

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dynamic

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dynamic A = 0;     // Start as int
A = 'name';        // ✅ Now a String — dynamic allows any type
A = true;          // ✅ Now a bool
print(A); // true

Option 2: Use

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Object?

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Object? A = 0;
A = 'name'; // ✅ Any non-null type
A = null;   // ✅ Null also allowed

Dart Type System

int A = 0

String A = 'hi'

dynamic A = 0

Object A = 0

var A = 0

int

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// var infers the type — locked after inference
var A = 0;     // Inferred as int
A = 'name';   // ❌ Error — A is still int

// dynamic — truly flexible
dynamic B = 0;
B = 'name';   // ✅ Works

Answer: No —

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int A = 0

cannot be reassigned to a

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String

. Dart is statically typed. Use

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dynamic A = 0

if you need a variable that can hold different types.