Java OCA OCP Practice Question 151

Question

Given: 

public class Main { 
  byte b1 = 4; 
  int i1 = 123456; 
  long L1 = (long)i1;      // line A 
  short s2 = (short)i1;    // line B 
  byte b2 = (byte)i1;      // line C 
  int i2 = (int)123.456;   // line D 
  byte b3 = b1 + 7;        // line E 
}

Which lines WILL NOT compile?

Choose all that apply.

  • A. Line A
  • B. Line B
  • C. Line C
  • D. Line D
  • E. Line E 


E is correct; compilation of line E fails.

Note

When a mathematical operation is performed on any primitives smaller than ints, the result is automatically cast to an integer.

A, B, C, and D are all legal primitive casts.




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