Answer the following questions. For the tracing exercises, you should be able to complete the tracing tables on this page and then print the page from the browser.
Statement | Variable Values | |
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m → 143 k → 70 |
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m.transferFrom(k); | ||
m → k → |
Statement | Variable Values | |
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private static void swap1(int i1, int i2) { | ||
i1 = i2 = |
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int tmp = i1; | ||
i1 = i2 = tmp = |
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i1 = i2; | ||
i1 = i2 = tmp = |
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i2 = tmp; | ||
i1 = i2 = tmp = |
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} | ||
Start tracing here | ||
int x = 7, y = 12; | ||
x = y = |
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swap1(x, y); | ||
x = y = |
Statement | Variable Values | |
---|---|---|
private static void swap2(String s1, String s2) { | ||
s1 → s2 → |
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String tmp = s1; | ||
s1, tmp → s2 → |
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s1 = s2; | ||
s1, s2 → tmp → |
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s2 = tmp; | ||
s1 → s2, tmp → |
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} | ||
Start tracing here | ||
String x = "legends", y = "leaders"; | ||
x → y → |
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swap2(x, y); | ||
x → y → |
Statement | Variable Values | |
---|---|---|
private static void swap3(NaturalNumber n1, NaturalNumber n2) { | ||
n1 → n2 → |
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NaturalNumber tmp = n1; | ||
n1, tmp → n2 → |
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n1 = n2; | ||
n1, n2 → tmp → |
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n2 = tmp; | ||
n1 → n2, tmp → |
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} | ||
Start tracing here | ||
NaturalNumber x = new NaturalNumber2(41), y = new NaturalNumber2(78); | ||
x → y → |
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swap3(x, y); | ||
x → y → |