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Issue 383 parson in 5.1 #384

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Issue 383 parson in 5.1 #384

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habibasorour Aug 7, 2026
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habibasorour Aug 7, 2026
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53 changes: 53 additions & 0 deletions source/ch5_loopsanditeration.ptx
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Expand Up @@ -183,6 +183,59 @@ public class StringIterationExample {
</program>
</listing>

<exercise label="java_loops_sum_evens_parsons">
<statement>
<p>
Rearrange the blocks to create a Java method that accepts an upper bound integer <c>limit</c> and calculates the sum of all even numbers from 2 up to and including <c>limit</c>.
</p>
</statement>
<blocks>
<block order="1">
<cline>public int sumEvens(int limit) {</cline>
</block>

<block order="2">
<choice correct="yes">
<cline> int total = 0;</cline>
</choice>
<choice correct="no">
<cline> int total;</cline>
</choice>
</block>

<block order="3">
<choice correct="yes">
<cline> for (int i = 2; i &lt;= limit; i += 2) {</cline>
</choice>
<choice correct="no">
<cline> for (int i = 2; i &lt; limit; i =+ 2) {</cline>
</choice>
</block>

<block order="4">
<choice correct="yes">
<cline> total += i;</cline>
<cline> }</cline>
</choice>
<choice correct="no">
<cline> total = i;</cline>
<cline> }</cline>
</choice>
</block>

<block order="5">
<choice correct="yes">
<cline> return total;</cline>
<cline>}</cline>
</choice>
<choice correct="no">
<cline> return i;</cline>
<cline>}</cline>
</choice>
</block>
</blocks>
</exercise>

</section>

<section xml:id="indefinite-loops">
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