rayskeez21
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CR-MicroLabs-Streams-And-Lambdas
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Leon 7 years ago
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bec7802822
17 changed files with 1313 additions and 0 deletions
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  10. 19
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  11. 37
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      src/main/java/com/zipcode/ArrayListLoopMethods.java
  12. 36
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      src/main/java/com/zipcode/ArrayLoopMethods.java
  13. 62
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      src/main/java/com/zipcode/Person.java
  14. 35
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  15. 88
    0
      src/main/java/com/zipcode/tools/RandomUtils.java
  16. 30
    0
      src/test/java/com/zipcode/ArrayListLoopMethodsTest.java
  17. 31
    0
      src/test/java/com/zipcode/ArrayLoopMethodsTest.java

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looptest.iml View File 

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1 
+<?xml version="1.0" encoding="UTF-8"?>
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+<module org.jetbrains.idea.maven.project.MavenProjectsManager.isMavenModule="true" type="JAVA_MODULE" version="4">
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+  <component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_5">
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+    <output url="file://$MODULE_DIR$/target/classes" />
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+    <content url="file://$MODULE_DIR$">
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+      <sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
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+      <sourceFolder url="file://$MODULE_DIR$/src/main/resources" type="java-resource" />
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+      <sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
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+      <excludeFolder url="file://$MODULE_DIR$/target" />
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+  </component>
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+ 19
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pom.xml View File 

@@ -0,0 +1,19 @@
1 
+<?xml version="1.0" encoding="UTF-8"?>
2 
+<project xmlns="http://maven.apache.org/POM/4.0.0"
3 
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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+    <modelVersion>4.0.0</modelVersion>
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+
7 
+    <groupId>mygroupid</groupId>
8 
+    <artifactId>looptest</artifactId>
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+    <version>1.0-SNAPSHOT</version>
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+    <dependencies>
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+        <dependency>
12 
+            <groupId>junit</groupId>
13 
+            <artifactId>junit</artifactId>
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+            <version>RELEASE</version>
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+        </dependency>
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+    </dependencies>
17 
+
18 
+
19 
+</project>

+ 37
- 0
src/main/java/com/zipcode/ArrayListLoopMethods.java View File 

@@ -0,0 +1,37 @@
1 
+package com.zipcode;
2 
+
3 
+import com.zipcode.tools.PersonFactory;
4 
+
5 
+import java.util.ArrayList;
6 
+
7 
+/**
8 
+ * Created by leon on 5/2/17.
9 
+ */
10 
+public class ArrayListLoopMethods {
11 
+    private ArrayList<Person> personArrayList = PersonFactory.createPersonArrayList(100);
12 
+
13 
+    public void testWhileLoop() {
14 
+        int i = 0;
15 
+        while(i<personArrayList.size()) {
16 
+            Person person = personArrayList.get(i);
17 
+            String name = person.getName();
18 
+            System.out.println(name);
19 
+            i++;
20 
+        }
21 
+    }
22 
+
23 
+    public void testForLoop() {
24 
+        for(int i=0; i<personArrayList.size(); i++) {
25 
+            Person person = personArrayList.get(i);
26 
+            String name = person.getName();
27 
+            System.out.println(name);
28 
+        }
29 
+    }
30 
+
31 
+    public void testForEachloop() {
32 
+        for(Person person : personArrayList) {
33 
+            String name = person.getName();
34 
+            System.out.println(name);
35 
+        }
36 
+    }
37 
+}

+ 36
- 0
src/main/java/com/zipcode/ArrayLoopMethods.java View File 

@@ -0,0 +1,36 @@
1 
+package com.zipcode;
2 
+
3 
+import com.zipcode.Person;
4 
+import com.zipcode.tools.PersonFactory;
5 
+
6 
+/**
7 
+ * Created by leon on 5/2/17.
8 
+ */
9 
+public class ArrayLoopMethods {
10 
+    private Person[] personArray = PersonFactory.createPersonArray(100);
11 
+
12 
+    public void testWhileLoop() {
13 
+        int i = 0;
14 
+        while(i< personArray.length) {
15 
+            Person person = personArray[i];
16 
+            String name = person.getName();
17 
+            System.out.println(name);
18 
+            i++;
19 
+        }
20 
+    }
21 
+
22 
+    public void testForLoop() {
23 
+        for(int i = 0; i< personArray.length; i++) {
24 
+            Person person = personArray[i];
25 
+            String name = person.getName();
26 
+            System.out.println(name);
27 
+        }
28 
+    }
29 
+
30 
+    public void testForEachloop() {
31 
+        for(Person person : personArray) {
32 
+            String name = person.getName();
33 
+            System.out.println(name);
34 
+        }
35 
+    }
36 
+}

+ 62
- 0
src/main/java/com/zipcode/Person.java View File 

@@ -0,0 +1,62 @@
1 
+package com.zipcode;
2 
+
3 
+import java.util.Date;
4 
+
5 
+/**
6 
+ * Created by leon on 5/1/17.
7 
+ */
8 
+public class Person {
9 
+    private String name;
10 
+    private int age;
11 
+    private boolean isMale;
12 
+    private long personalId;
13 
+    private Date birthDate;
14 
+
15 
+    public Person(String name, int age, boolean isMale, long personalId, Date birthDate) {
16 
+        this.name = name;
17 
+        this.age = age;
18 
+        this.isMale = isMale;
19 
+        this.personalId = personalId;
20 
+        this.birthDate = birthDate;
21 
+    }
22 
+
23 
+    public String getName() {
24 
+        return name;
25 
+    }
26 
+
27 
+    public int getAge() {
28 
+        return age;
29 
+    }
30 
+
31 
+    public boolean isMale() {
32 
+        return isMale;
33 
+    }
34 
+
35 
+    public long getPersonalId() {
36 
+        return personalId;
37 
+    }
38 
+
39 
+    public Date getBirthDate() {
40 
+        return birthDate;
41 
+    }
42 
+
43 
+    public void setPersonalId(long personalId) {
44 
+        this.personalId = personalId;
45 
+    }
46 
+
47 
+    public void setMale(boolean male) {
48 
+        isMale = male;
49 
+    }
50 
+
51 
+    public void setAge(int age) {
52 
+        this.age = age;
53 
+    }
54 
+
55 
+    public void setName(String name) {
56 
+        this.name = name;
57 
+    }
58 
+
59 
+    public void setBirthDate(Date birthDate) {
60 
+        this.birthDate = birthDate;
61 
+    }
62 
+}

+ 35
- 0
src/main/java/com/zipcode/tools/PersonFactory.java View File 

@@ -0,0 +1,35 @@
1 
+package com.zipcode.tools;
2 
+import com.zipcode.Person;
3 
+
4 
+import java.util.ArrayList;
5 
+import java.util.Date;
6 
+
7 
+/** Created by leon on 5/1/17. */
8 
+public class PersonFactory {
9 
+    public static Person createRandomPerson() {
10 
+        String name = RandomUtils.createString('a', 'z', 10);
11 
+        int age = RandomUtils.createInteger(0, 99);
12 
+        boolean isMale = RandomUtils.chance(50);
13 
+        long personalId = System.nanoTime();
14 
+        Date birthDate = RandomUtils.createDate(1950, 2010);
15 
+        Person randomPerson = new Person(name, age, isMale, personalId, birthDate);
16 
+        return randomPerson;
17 
+    }
18 
+
19 
+    public static ArrayList<Person> createPersonArrayList(int personCount) {
20 
+        ArrayList<Person> people = new ArrayList<Person>();
21 
+        for(int i=0;i<people.size();i++) {
22 
+            people.add(PersonFactory.createRandomPerson());
23 
+        }
24 
+        return people;
25 
+    }
26 
+
27 
+
28 
+    public static Person[] createPersonArray(int personCount) {
29 
+        Person[] people = new Person[personCount];
30 
+        for(int i=0;i<people.length;i++) {
31 
+            people[i] = PersonFactory.createRandomPerson();
32 
+        }
33 
+        return people;
34 
+    }
35 
+}

+ 88
- 0
src/main/java/com/zipcode/tools/RandomUtils.java View File 

@@ -0,0 +1,88 @@
1 
+package com.zipcode.tools;
2 
+
3 
+import java.awt.*;
4 
+import java.util.*;
5 
+
6 
+/**
7 
+ * Created by Leon on 2/4/2017.
8 
+ */
9 
+
10 
+public abstract class RandomUtils {
11 
+    private static final Random random = new Random();
12 
+
13 
+    /** @return true with the likelihood of specified percentage */
14 
+    public static boolean chance(float percentage) {
15 
+        return percentage > createFloat(0, 100);
16 
+    }
17 
+
18 
+    /** @return a random character between the specified min and max character range */
19 
+    public static Character createCharacter(char min, char max) {
20 
+        return (char) createInteger((int) min, (int) min).intValue();
21 
+    }
22 
+
23 
+    /** @return a random double between the specified min and max numeric range */
24 
+    public static Double createDouble(Double min, Double max) {
25 
+        return createFloat(min.floatValue(), max.floatValue()).doubleValue();
26 
+    }
27 
+
28 
+    /** @return a random float between the specified min and max numeric range */
29 
+    public static Float createFloat(float min, float max) {
30 
+        return random.nextFloat() * (max - min) + min;
31 
+    }
32 
+
33 
+    /** @return a random integer between the specified min and max numeric range */
34 
+    public static Integer createInteger(Integer min, Integer max) {
35 
+        return createFloat(min, max).intValue();
36 
+    }
37 
+
38 
+    /** @return a random long between the specified min and max numeric range */
39 
+    public static Long createLong(Long min, Long max) {
40 
+        return createFloat(min, max).longValue();
41 
+    }
42 
+
43 
+    /** @return a random string of the specified length containing characters in the specified range */
44 
+    public static String createString(char min, char max, int length) {
45 
+        StringBuilder sb = new StringBuilder();
46 
+        for (int i = 0; i < length; i++) {
47 
+            sb.append(createCharacter(min, max));
48 
+        }
49 
+        return sb.toString();
50 
+    }
51 
+
52 
+    /** @return a random date object ranging between the specified dates */
53 
+    public static Date createDate(int minYear, int maxYear) {
54 
+        GregorianCalendar gc = new GregorianCalendar();
55 
+        gc.set(Calendar.YEAR, createInteger(minYear, maxYear));
56 
+        gc.set(Calendar.DAY_OF_YEAR, createInteger(1, gc.getActualMaximum(Calendar.DAY_OF_YEAR)));
57 
+        return gc.getTime();
58 
+    }
59 
+
60 
+    /** @return a random element from the sepcified array */
61 
+    public static <E> E selectElement(E[] array) {
62 
+        return array[createInteger(0, array.length - 1)];
63 
+    }
64 
+
65 
+    /** @return specified string value with random upper and lower casing assigned to each character */
66 
+    public static String shuffleCasing(String str) {
67 
+        StringBuilder sb = new StringBuilder();
68 
+        for (String s : str.toLowerCase().split("")) {
69 
+            sb.append(chance(50) ? s.toUpperCase() : s.toLowerCase());
70 
+        }
71 
+        return sb.toString();
72 
+    }
73 
+
74 
+    /** @return shuffles the specified string array */
75 
+    public static String[] shuffleStringArray(String... array) {
76 
+        ArrayList<String> list = new ArrayList<String>(Arrays.asList(array));
77 
+        Collections.shuffle(list);
78 
+        return list.toArray(new String[list.size()]);
79 
+    }
80 
+
81 
+    /** @return a random color with the specified maximum rgb values */
82 
+    public static Color createColor(int maxRed, int maxGreen, int maxBlue) {
83 
+        int red = createInteger(0, maxRed);
84 
+        int green = createInteger(0, maxGreen);
85 
+        int blue = createInteger(0, maxBlue);
86 
+        return new Color(red, green, blue);
87 
+    }
88 
+}

+ 30
- 0
src/test/java/com/zipcode/ArrayListLoopMethodsTest.java View File 

@@ -0,0 +1,30 @@
1 
+package com.zipcode;
2 
+
3 
+import org.junit.Before;
4 
+import org.junit.Test;
5 
+
6 
+/**
7 
+ * Created by leon on 5/2/17.
8 
+ */
9 
+public class ArrayListLoopMethodsTest {
10 
+    private ArrayListLoopMethods arrayListLoopMethods;
11 
+    @Before
12 
+    public void setup() {
13 
+        arrayListLoopMethods = new ArrayListLoopMethods();
14 
+    }
15 
+
16 
+    @Test
17 
+    public void testWhileLoop() {
18 
+        arrayListLoopMethods.testWhileLoop();
19 
+    }
20 
+
21 
+    @Test
22 
+    public void testForLoop() {
23 
+        arrayListLoopMethods.testForLoop();
24 
+    }
25 
+
26 
+    @Test
27 
+    public void testForEachLoop() {
28 
+        arrayListLoopMethods.testForEachloop();
29 
+    }
30 
+}

+ 31
- 0
src/test/java/com/zipcode/ArrayLoopMethodsTest.java View File 

@@ -0,0 +1,31 @@
1 
+package com.zipcode;
2 
+
3 
+import org.junit.Before;
4 
+import org.junit.Test;
5 
+
6 
+/**
7 
+ * Created by leon on 5/2/17.
8 
+ */
9 
+public class ArrayLoopMethodsTest {
10 
+    private ArrayLoopMethods arrayLoopMethods;
11 
+
12 
+    @Before
13 
+    public void setup() {
14 
+        arrayLoopMethods = new ArrayLoopMethods();
15 
+    }
16 
+
17 
+    @Test
18 
+    public void testWhileLoop() {
19 
+        arrayLoopMethods.testWhileLoop();
20 
+    }
21 
+
22 
+    @Test
23 
+    public void testForLoop() {
24 
+        arrayLoopMethods.testForLoop();
25 
+    }
26 
+
27 
+    @Test
28 
+    public void testForEachLoop() {
29 
+        arrayLoopMethods.testForEachloop();
30 
+    }
31 
+}