java-development-for-beginners-learnit / 06 - Strings in Java /006 Format floating-point number.html
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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> | |
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| <h2>Solution(s)</h2> | |
| <div id="coding-solutions"></div> | |
| </div> | |
| <script> | |
| const quizData = {"title": "006 Format floating-point number", "hasInstructions": true, "hasTests": true, "hasSolutions": true, "instructions": "<ol><li><p>Implement console program which meet the following requirements:</p><ol><li><p>Program starts and prints Math.PI five times in console output</p></li><li><p>The first Math.PI contains only one fraction digit</p></li><li><p>The second Math.PI contains two fraction digits</p></li><li><p>The third time Math.PI contains three fraction digits</p></li><li><p>The fourth time Math.PI contains four fraction digits</p></li><li><p>The fifth time Math.PI contains five fraction digits</p></li></ol></li></ol>", "tests": [{"file_name": "Evaluate.java", "content": "import org.junit.Test;\nimport org.junit.Assert;\nimport com.udemy.ucp.*;\n\nimport static org.junit.Assert.assertEquals;\n\nimport java.io.ByteArrayOutputStream;\nimport java.io.PrintStream;\n\nimport org.junit.After;\nimport org.junit.Before;\nimport org.junit.Test;\n\npublic class Evaluate {\n\tprivate final ByteArrayOutputStream out = new ByteArrayOutputStream();\n\tprivate final PrintStream originalOut = System.out;\n\n\t@Before\n\tpublic void setStreams() {\n\t\tSystem.setOut(new PrintStream(out));\n\t}\n\n\t@After\n\tpublic void restoreInitialStreams() {\n\t\tSystem.setOut(originalOut);\n\t}\n\t\n\t@Test\n\tpublic void shouldPrintPiNumberFiveTimes() {\n\t PINumberFormatting.main(new String[] {});\n\t\tassertEquals(\"3.1,3.14,3.142,3.1416,3.14159\",out.toString().trim().replace(System.lineSeparator(), \",\"));\n\t}\n}\n"}], "solutions": [{"file_name": "PINumberFormatting.java", "content": "public class PINumberFormatting {\r\n\t\r\n\tpublic static void main(String[] args) {\r\n\t\tSystem.out.printf(\"%.1f%n\", Math.PI);\r\n\t\tSystem.out.printf(\"%.2f%n\", Math.PI);\r\n\t\tSystem.out.printf(\"%.3f%n\", Math.PI);\r\n\t\tSystem.out.printf(\"%.4f%n\", Math.PI);\r\n\t\tSystem.out.printf(\"%.5f%n\", Math.PI);\r\n\t}\r\n\r\n}\r\n"}]}; | |
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| // display the test(s) | |
| var codingTests = document.getElementById("coding-tests"); | |
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| } | |
| // display the solution(s) | |
| var codingSolutions = document.getElementById("coding-solutions"); | |
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| codingSolutions.innerHTML = '<span class="italic-text">' + quizData.solutions + "</span>"; | |
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| renderCodeList(codingSolutions, quizData.solutions, "coding-solution", "Solution"); | |
| } | |
| } | |
| </script> | |
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