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| {| class="wikitable" style="text-align: left; width: 100%;"
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| |+ Figure 7. Method <code>addIfPositive</code>
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| |-
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| | <pre>
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| public int addIfPositive
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| (int a, int b)
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| {
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| if (a >= 0 && b >= 0)
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| return (a+b);
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| return -1;
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| }
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| </pre>
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| | <pre>
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| public int addIfPositive
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| (int a, int b)
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| {
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| if (a >= 0 && b < 0)
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| return (a+b);
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| return -1;
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| }
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| </pre>
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| | <pre>
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| public int addIfPositive
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| (int a, int b)
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| {
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| if (a < 0 && b >= 0)
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| return (a+b);
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| return -1;
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| }
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| </pre>
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| |-
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| | '''Original'''
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| | '''Mutant #1'''
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| | '''Mutant #2'''
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| |}
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