Which two cause a compiler error? 1. float[ ] f = new float(3); 2. float f2[ ] = new float[ ]; 3. float[ ]f1 = new float[3]; 4. float f3[ ] = new float[3]; 5. float f5[ ] = {1.0f, 2.0f, 2.0f};

(1) causes two compiler errors ( '[' expected and illegal start of expression) because the wrong type of bracket is used, ( ) instead of [ ]. The following is the correct syntax: float[ ] f = new float[3]; (2) causes a compiler error ( '{' expected ) because the array constructor does not specify the number of elements in the array. The following is the correct syntax: float f2[ ] = new float[3]; (3), (4), and (5) compile without error.