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Types, Variables, and Scope

public class UninitializedVariableExample {
public static void main(final String[] args) {
final int a = 3;
final int b;
final int c;
System.out.println(a); // ok; prints 3
b = 3;
System.out.println(b); // ok; prints 3
System.out.println(c); // error: c is not initialized
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