JavaTpoint
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Question 1: What will happen when you attempt to compile and run the following code?

int Output = 10;

boolean b1 = false;

if((b1 == true) && ((Output += 10) == 20))

{

System.out.println("We are equal " + Output);

}

else

{

System.out.println("Not equal! " + Output);

}
1. Compilation error, attempting to perform binary comparison on logical data type.
2. Compilation and output of "We are equal 10".
3. Compilation and output of "Not equal! 20".
4. Compilation and output of "Not equal! 10".