School of Engineering and
Applied
Science Department of Computer Science CSci 53 -- Introduction to Software Development http://www.seas.gwu.edu/~csci53/fall04 Prof. Michael B. Feldman mfeldman@gwu.edu |

for lab meeting Tuesday, Sept. 21, 2004

`int iResult, num1 = 25, num2 = 40, num3 = 17, num4 = 5;`

`double fResult, val1 = 17.0, val2 = 12.78;`

For each of these assignment statements, what will the result be in
`iResult`
or `fResult`? First compute the results manually and fill in
the
"predicted results" column of the table. Then, use the program `programs53/Arithmetic.java`
as a way to test your predictions and fill in the "actual results"
column.
Use the fourth column for any comments you may have. Make sure you
understand
*why*
each actual result is what it is!

Assignment Statement |
Predicted Result |
Actual Result |
Explanatory Comments |

iResult = num1 / num4; |
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fResult = num1 / num4; |
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iResult = num3 / num4; |
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fResult = num3 / num4; |
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fResult = val1 / num4; |
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fResult = val1 / val2; |
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iResult = num1 / num2; |
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fResult = (double) num1 / num2; |
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fResult = num1 / (double) num2; |
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fResult = (double) (num1 / num2); |
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iResult = (int) (val1 / num4); |
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fResult = (int) (val1 / num4); |
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fResult = (int) ((double) num1 / num2); |
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iResult = num3 % num4; |
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iResult = num 2 % num3; |
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iResult = num3 % num2; |
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iResult = num2 % num4; |

`int iResult, a = 10, b = 8, c = 6, d = 5, e =2;`

and the program `programs53/Precedence.java.`

Assignment Statement |
Predicted Result |
Actual Result |
Explanatory Comments |

iResult = a - b - c - d; |
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iResult = a - b + c - d; |
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iResult = a + b / c / d; |
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iResult = a + b / c * d; |
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iResult = a / b * c * d; |
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iResult = a % b / c * d; |
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iResult = a % b % c % d; |
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iResult = a - (b - c) - d; |
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iResult = (a - (b - c)) - d; |
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iResult = a - ((b - c) - d); |
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iResult = a % (b % c) * d * e; |
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iResult = a + (b - c) * d - e; |
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iResult = (a + b) * c + d * e; |
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iResult = (a + b) * (c / d) % e; |

(end of lab)