Java Reference
In-Depth Information
figure C.2
Packing bits for
faculty profiles
// Faculty Profile Fields
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static int SEX = 0x0001; // On if female
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static int MINORITY = 0x0002; // On if in a minority group
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static int VETERAN = 0x0004; // On if veteran
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static int DISABLED = 0x0008; // On if disabled
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static int US_CITIZEN = 0x0010; // On if citizen
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static int DOCTORATE = 0x0020; // On if holds a doctorate
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static int TENURED = 0x0040; // On if tenured
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static int TWELVE_MON = 0x0080; // On if 12 month contract
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static int VISITOR = 0x0100; // On if visiting faculty
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static int CAMPUS = 0x0200; // On if at main campus
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static int RANK = 0x0c00; // 2 bits to represent rank
static int ASSISTANT = 0x0400; // Assistant Professor
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static int ASSOCIATE = 0x0800; // Associate Professor
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static int FULL = 0x0c00; // Full Professor
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static int COLLEGE = 0xf000; // Represents 16 colleges
...
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static int ART_SCIENCE = 0x3000; // Arts & Science: College 3
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...
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// Later in a method initialize appropriate fields
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tim = ART_SCIENCE | ASSOCIATE | CAMPUS | TENURED |
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TWELVE_MON | DOCTORATE | US_CITIZEN;
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// Promote tim To Full Professor
tim &= ~RANK; // Turn all rank fields off
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tim |= FULL; // Turn rank fields on
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