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sayed-moin-ahmedsayed-moin-ahmed
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Merge pull request #75 from sayed-moin-ahmed/develop
Develop
2 parents 4d5f276 + ba86078 commit fa76658

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6 files changed

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‎.gitignore

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*.xml
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*.lst
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.idea/*.*
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example.iml

‎src/main/java/com/java15/example/ExampleApplication.java

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public class ExampleApplication {
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public static void main(String[] args) {
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int result = 0;
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Set<String> opNames = new HashSet();
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opNames.add("ADD");
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opNames.add("SUB");
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2017

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if(Objects.isNull(args) || 3 != args.length)
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throw new IllegalArgumentException("Please enter the value like OperationName(ADD/SUB) value1 value2 : example ADD/SUB 3 4");
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String operation = args[0].trim();
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if(!opNames.contains(operation))
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throw new IllegalArgumentException("Invalid operation put either ADD/SUB");
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Integer value1 = Integer.valueOf(args[1]);
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Integer value2 = Integer.valueOf(args[2]);
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if("ADD".equals(operation)){
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result = value1 + value2;
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}
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else if("SUB".equals(operation)){
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result = value1 - value2;
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}
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System.out.println(result);
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}
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private static void extracted() {
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Employee employee1 = new Employee(1,"sam");
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Employee employee2 = new Employee(2,"rock");
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List<Employee> list = new ArrayList<Employee>();
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list.add(employee1);
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list.add(employee1);
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System.out.println("list"+list);
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Set<Employee> set = new HashSet<Employee>();
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set.add(employee1);
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set.add(employee2);
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System.out.println("set"+set);
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Map<Employee,Integer> map = new HashMap<>();
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map.put(employee1,1);
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map.put(employee2,2);
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System.out.println("map"+map);
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Stream stream = list.parallelStream().map(Employee::getId).peek(e->System.out.println("eager"+e));
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System.out.println("Lazy");
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stream.forEach(System.out::println);
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}
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}
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class Employee {
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private int id;
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private String name;
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public Employee(int id, String name) {
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this.id = id;
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this.name = name;
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}
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@Override
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public boolean equals(Object o) {
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if (this == o) return true;
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if (o == null || getClass() != o.getClass()) return false;
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Employee employee = (Employee) o;
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return id == employee.id && Objects.equals(name, employee.name);
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}
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@Override
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public int hashCode() {
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return 1;
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}
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@Override
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public String toString() {
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return "Employee{" +
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"id=" + id +
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", name='" + name + '\'' +
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'}';
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}
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public int getId() {
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return id;
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}
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public void setId(int id) {
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this.id = id;
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}
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public String getName() {
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return name;
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}
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public void setName(String name) {
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this.name = name;
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}
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}

‎src/main/java/com/java15/example/java8inaction/Java8_9_10_11_whatshappening/Apple.java

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package com.java15.example.java8inaction.Java8_9_10_11_whatshappening;
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public class Apple {
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private int weight;
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private String color;
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public Apple(int weight){
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this.weight = weight;
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}
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public Apple(int weight,String color) {
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this.weight = weight;this.color = color;
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}
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public int getWeight() {
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return weight;
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}
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public void setWeight(int weight) {
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this.weight = weight;
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}
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public String getColor() {
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return color;
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}
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public void setColor(String color) {
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this.color = color;
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}
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@Override
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public String toString() {
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return "Apple{" +
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"weight=" + weight +
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", color='" + color + '\'' +
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'}';
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}
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}

‎src/main/java/com/java15/example/java8inaction/Java8_9_10_11_whatshappening/Colors.java

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package com.java15.example.java8inaction.Java8_9_10_11_whatshappening;
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public interface Colors {
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String GREEN ="GREEN";
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String RED ="RED";
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}

‎src/main/java/com/java15/example/java8inaction/Java8_9_10_11_whatshappening/Test.java

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package com.java15.example.java8inaction.Java8_9_10_11_whatshappening;
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import java.io.File;
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import java.util.Comparator;
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import java.util.List;
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import java.util.Map;
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import java.util.Optional;
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import java.util.function.Predicate;
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import java.util.stream.Collectors;
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import static java.util.stream.Collectors.groupingBy;
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public class Test {
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public static void main(String[] args) {
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List<Apple> apples = getData();
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//filterApples(apples,(Apple a) -> Colors.GREEN.equals(a.getColor())).stream().forEach(System.out::println);
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//filterApples(apples,(Apple a) -> Colors.GREEN.equals(a.getColor())).stream().forEach(System.out::println);
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//filterGroupApples(apples,(Apple a) -> Colors.RED.equals(a.getColor())).forEach((i,list) ->{System.out.println(i+""+list);});
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//filterGroupApples(apples,(Apple a) -> {return true;}).forEach((i,list) ->{System.out.println(i+""+list);});
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minAppleByWeight(apples).ifPresent(System.out::println);
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maxAppleByWeight(apples).ifPresent(System.out::println);
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}
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static List<Apple> filterApples(List<Apple> inventory, Predicate<Apple> p) {
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return inventory.stream().filter(p).collect(Collectors.toList());
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}
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static Map<Integer, List<Apple>> filterGroupApples(List<Apple> inventory, Predicate<Apple> p) {
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return inventory.stream().filter(p).collect(groupingBy(Apple::getWeight));
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}
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static Optional<Apple> minAppleByWeight(List<Apple> inventory) {
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return inventory.stream().min(Comparator.comparing(Apple::getWeight));
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}
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static Optional<Apple> maxAppleByWeight(List<Apple> inventory) {
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return inventory.stream().max(Comparator.comparing(Apple::getWeight));
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}
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private static List<Apple> getData() {
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Apple apple1 = new Apple(10,Colors.GREEN);
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Apple apple2 = new Apple(1,Colors.RED);
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Apple apple3 = new Apple(5,Colors.GREEN);
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Apple apple4 = new Apple(3,Colors.RED);
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Apple apple5 = new Apple(3,Colors.RED);
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Apple apple6 = new Apple(5,Colors.GREEN);
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List<Apple> apples = List.of(apple1,apple2,apple3,apple4,apple5,apple6);
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return apples;
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}
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static File[] handlingFiles(){
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File[] hiddenFiles = new File(".").listFiles(File::isHidden);
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return hiddenFiles;
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}
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}

‎src/main/java/com/java15/example/java8inaction/Test.java

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package com.java15.example.java8inaction;
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public class Test {
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public static void main(String[] args){
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int counter = 0;
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int temp;
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//9,3,6,5,7,2
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int[] arr ={10,9,3,6,5,7,2,13};
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for(int i= 0; i<arr.length;i++){
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for(int j=1;j<arr.length;j++){
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if(arr[i]<arr[j]){
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counter++;
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if(counter>2) {
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break;
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}
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}
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}
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}
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System.out.println(counter);
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}
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}

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