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| <title>Coding Assignment</title> |
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| <body onload="main()"> |
| <h1 id="coding-title"></h1> |
| <div> |
| <h2>Instructions</h2> |
| <div id="coding-instructions"></div> |
| </div> |
| <div> |
| <h2>Test(s)</h2> |
| <div id="coding-tests"></div> |
| </div> |
| <div> |
| <h2>Solution(s)</h2> |
| <div id="coding-solutions"></div> |
| </div> |
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| <script> |
| const quizData = {"title": "005 Find max int in array", "hasInstructions": true, "hasTests": true, "hasSolutions": true, "instructions": "<ol><li><p>Implement console program which will meet the following requirements:</p><ol><li><p>Program starts and asks user to input integer numbers separated by space.</p></li><li><p>Program creates array object with entered numbers.</p></li><li><p>Program calls specific method which takes int[] as an parameter and returns max value in this array.<br><br>Method should look like this:<br><strong><em>public static int findMaxIntInArray(int[] intArray) {</em></strong></p></li></ol></li></ol><p><strong><em><write your code here><br>}</em></strong><br><br></p><ol><li><ol><li><p>Program prints max value from the array to the console.</p></li></ol></li></ol>", "tests": [{"file_name": "Evaluate.java", "content": "import org.junit.Test;\nimport org.junit.Assert;\nimport com.udemy.ucp.*;\nimport static org.junit.Assert.assertEquals;\n\nimport org.junit.Test;\n\npublic class Evaluate {\n\t\n\t@Test\n\tpublic void shouldFindMaxIntInArray() {\n\t\tint[] arr = {1, 100, 2, 5, 8 -100};\n\t\tassertEquals(100, FindMaxInt.findMaxIntInArray(arr));\n\t}\n\n}\n"}], "solutions": [{"file_name": "FindMaxInt.java", "content": "import java.util.Arrays;\r\nimport java.util.Scanner;\r\n\r\npublic class FindMaxInt {\r\n\t\r\n\tpublic static void main(String[] args) {\r\n\t\tScanner sc = new Scanner(System.in);\r\n\t\tSystem.out.print(\"Please, enter integer numbers separated by space: \");\r\n\t\tString numbers = sc.nextLine();\r\n\t\tint[] intArray = convertStringArrayToIntArray(numbers.split(\"\\\\s+\"));\r\n\t\tint maxInt = findMaxIntInArray(intArray);\r\n\t\tSystem.out.println(\"*** Initial Array ***\");\r\n\t\tSystem.out.println(Arrays.toString(intArray));\r\n\t\tSystem.out.println(\"*** Max number in array ***\");\r\n\t\tSystem.out.println(maxInt);\r\n\t}\r\n\r\n\t\r\n\tpublic static int findMaxIntInArray(int[] intArray) {\r\n\t\tint max = intArray[0];\r\n\t\tfor (int i : intArray) {\r\n\t\t\tif (i > max) {\r\n\t\t\t\tmax = i;\r\n\t\t\t}\r\n\t\t}\r\n\t\treturn max;\r\n\t}\r\n\r\n\tprivate static int[] convertStringArrayToIntArray(String[] stringArray) {\r\n\t\tint[] intArray = new int[stringArray.length];\r\n\t\tfor (int i = 0; i < stringArray.length; i++) {\r\n\t\t\tintArray[i] = Integer.valueOf(stringArray[i]);\r\n\t\t}\r\n\t\treturn intArray;\r\n\t}\r\n\t\r\n\t// ====================== SOLUTION WITH STREAM API\r\n\t\r\n\tpublic static int findMaxIntInArrayStreamApi(int[] intArray) {\r\n\t\treturn Arrays.stream(intArray).max().getAsInt();\r\n\t}\r\n\r\n\tprivate static int[] convertStringArrayToIntArrayStreamApi(String[] stringArray) {\r\n\t\treturn Arrays.stream(stringArray)\r\n\t\t\t\t.mapToInt(s -> Integer.valueOf(s))\r\n\t\t\t\t.toArray();\r\n\t}\r\n\r\n}\r\n"}]}; |
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