Type Casting
// Widening
// byte<short<int<long<float<double
int i = 10;
long l = i; // 10
// Narrowing
double d = 10.02;
long l = (long)d; // 10
String.valueOf(10); // "10"
Integer.parseInt("10"); // 10
Double.parseDouble("10"); // 10.0
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