2020-01-15 23:07:02 -05:00
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2022-02-15 01:14:58 -05:00
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2020-01-15 23:07:02 -05:00
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<h1>Exam Review Partial Answer Sheet</h1>
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<p>Write a Java method to sum values of an array</p>
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<pre><code class="language-java">// Assume variable numbers is an array of 10 integers
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int sum = 0;
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for (int i = 0; i < numbers.length; i++) {
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sum += numbers[i];
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}</code></pre>
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<p>Write a Java method to test if an array contains a specific value</p>
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<pre><code class="language-java">// Assume variable numbers is an array of 10 integers
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int numWanted = 4;
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boolean found = false;
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for (int i = 0; i < numbers.length; i++) {
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if (numbers[i] == numWanted) {
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System.out.println("The number " + numWanted + " was found!");
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found = true;
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}
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}
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if (!found) {
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System.out.println("The number " + numWanted + " was not found!");
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}</code></pre>
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<p>Write a Java method to find the index of an array element</p>
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<pre><code class="language-java">// Assume variable numbers is an array of 10 integers
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int numWanted = 4;
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boolean found = false;
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for (int i = 0; i < numbers.length; i++) {
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if (numbers[i] == numWanted) {
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System.out.println("The index of number " + numWanted + " is " + i);
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}
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}</code></pre>
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<p>How many lines will the following loop print when it is run?</p>
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<pre><code class="language-java">int i = 0;
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while (i <= 6) {
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System.out.println("i is now " + (i));
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i++;
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}</code></pre>
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<pre><code>i is now 0
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i is now 1
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i is now 2
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i is now 3
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i is now 4
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i is now 5
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i is now 6</code></pre>
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