Can someone explain the difference between these two?

Question

String numTest = "10";

Integer result1 = 10 + Integer.parseInt(numTest);
Integer result2 = 10 + Integer.valueOf(numTest);

System.out.println(result1); // outputs 20.
System.out.println(result2); // outputs 20.

what's the difference or secret behind them?

Answer 1

there is difference in there return type
1)Integer.valueOf (String) returns Integer object
2)Integer.parseInt (String) returns primitive Integer type (int)

Answer 2

now I get it😃. thanks