Add files via upload

Author: davidjava1991

Class15/bin/com/david/class151/Example1.class

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+<?xml version="1.0" encoding="UTF-8"?>
+<company>
+	<employee>
+		<id>32</id>
+		<name>David</name>
+		<age>33</age>
+	</employee>
+	<employee>
+		<id>23</id>
+		<name>Paul</name>
+		<age>23</age>
+	<employee>
+		<id>12</id>
+		<name>Josh</name>
+		<age>13</age>
+	</employee>
+	<employee>
+		<id>41</id>
+		<name>Tom</name>
+		<age>33</age>
+	</employee>
+	<employee>
+		<id>37</id>
+		<name>Adam</name>
+		<age>25</age>
+	</employee>
+	</employee>
+</company>

Class15/bin/com/david/class151/Example2.class

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+<?xml version="1.0" encoding="UTF-8"?>
+<customers>
+	<customer>
+		<id>12</id>
+		<name>David</name>
+		<address>Address 1</address>
+	</customer>
+	<customer>
+		<id>52</id>
+		<name>Paul</name>
+		<address>Address 2</address>
+	</customer>
+	<customer>
+		<id>23</id>
+		<name>Adam</name>
+		<address>Address 3</address>
+	</customer>
+	<customer>
+		<id>2</id>
+		<name>Ben</name>
+		<address>Address 4</address>
+	</customer>
+</customers>

Class15/bin/com/david/class151/Example3.class

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+#set name
+#Tue Dec 14 13:34:03 IST 2021
+name=paul
+course=java
+version=17 

Class15/bin/com/david/class151/Example4.class

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+Hello
+World

Class15/bin/com/david/class152/Example1.class

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+Hello World 
+ i am David

Class15/bin/com/david/class152/Example2.class

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+Hello World 
+ i am David

Class15/bin/com/david/class152/Example3.class

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+package com.david.class151;
+
+import java.io.BufferedWriter;
+import java.io.FileWriter;
+import java.io.IOException;
+
+public class Example1 {
+	public static void main(String[] args) {
+		try {
+			FileWriter fw = new FileWriter("./out/Sample.txt");
+			BufferedWriter bw =new BufferedWriter(fw);
+			bw.write("Hello World \n i am David");
+			bw.close();
+			System.out.println("File created");
+			
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
+		
+	}
+}

Class15/bin/com/david/class153/Employee.class

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+package com.david.class151;
+
+import java.io.BufferedReader;
+import java.io.FileNotFoundException;
+import java.io.FileReader;
+import java.io.IOException;
+
+public class Example2 {
+	public static void main(String[] args) {
+		try {
+			FileReader fr = new FileReader("./out/Sample.txt");
+			BufferedReader br = new BufferedReader(fr);
+			String op ="";
+			while(true) {
+				String s = br.readLine();
+				if(s == null) {
+					break;
+				} else {
+					op += s + "\n";
+				}
+			}
+			br.close();
+			System.out.println("File content : \n"+op);
+		} catch (FileNotFoundException e) {
+			e.printStackTrace();
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
+		
+	}
+}

Class15/bin/com/david/class153/EmployeeHandler.class

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+package com.david.class151;
+
+import java.io.File;
+
+public class Example3 {
+	public static void main(String[] args) {
+		File f = new File("./out/Sample.txt");
+		System.out.println("name : "+f.getName());
+		System.out.println("path : "+f.getAbsolutePath());
+		System.out.println("Exists : "+f.exists());
+		System.out.println("can read : "+f.canRead());
+		System.out.println("can write : "+f.canWrite());
+	}
+}

Class15/bin/com/david/class153/Example1.class

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+package com.david.class151;
+
+import java.io.FileNotFoundException;
+import java.io.FileReader;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.util.Properties;
+
+public class Example4 {
+	public static void main(String[] args) {
+		Properties p = new Properties();
+		try {
+			p.load(new FileReader("./in/settings.properties"));
+			System.out.println(p);
+			System.out.println("check key : "+p.containsKey("name"));
+			System.out.println("version = "+p.get("version"));
+			p.setProperty("name", "paul");
+			p.store(new FileWriter("./in/settings.properties"), "set name");
+			System.out.println("file stored");
+		} catch (FileNotFoundException e) {
+			e.printStackTrace();
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
+				
+	}
+}

Class15/bin/com/david/class154/Customer.class

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+package com.david.class152;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.nio.file.StandardCopyOption;
+
+public class Example1 {
+	public static void main(String[] args) {
+		Path p1 = Paths.get("out", "Sample.txt");
+		Path p2 = Paths.get("out", "SampleCopy.txt");
+		try {
+			Files.copy(p1, p2, StandardCopyOption.REPLACE_EXISTING);
+			System.out.println("Files copied");
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
+		
+	}
+}

Class15/bin/com/david/class154/Example1.class

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+package com.david.class152;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.nio.file.StandardCopyOption;
+import java.nio.file.attribute.FileAttribute;
+
+public class Example2 {
+	public static void main(String[] args) {
+		Path p1 = Paths.get("out", "Example.txt");
+		System.out.println("file name : "+p1.getFileName());
+		System.out.println("file system"+p1.getFileSystem());
+		try {
+			Files.createFile(p1);
+			System.out.println("File created");
+			
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
+	}
+}

Class15/bin/com/david/class154/Example2.class

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+package com.david.class152;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+
+public class Example3 {
+	public static void main(String[] args) {
+		Path p1 = Paths.get("out", "Example.txt");
+		try {
+			Files.writeString(p1,"""
+					Hello
+					World""");
+			System.out.println("File written");
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
+	}
+}

Class15/bin/com/david/class155/Example1.class

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+package com.david.class153;
+
+public class Employee {
+	int id;
+	String name;
+	int age;
+	@Override
+	public String toString() {
+		return "id = "+this.id+", name ="+this.name+", age="+this.age;
+		
+	}
+}

Class15/bin/com/david/class156/Example1.class

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+package com.david.class153;
+
+import java.util.ArrayList;
+
+import org.xml.sax.Attributes;
+import org.xml.sax.SAXException;
+import org.xml.sax.helpers.DefaultHandler;
+
+public class EmployeeHandler extends DefaultHandler{
+	ArrayList<Employee> eList;
+	Employee e;
+	boolean employee,id,name,age;
+	@Override
+	public void startDocument() throws SAXException {
+		eList = new ArrayList<>();
+		System.out.println("Document Started");
+	}
+	
+	@Override
+	public void endDocument() throws SAXException {
+		System.out.println(eList.size());
+		System.out.println(eList);
+		System.out.println("Document ended");
+	}
+	
+	@Override
+	public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {
+		System.out.println(qName);
+		switch(qName) {
+		case "employee": e = new Employee();
+						employee = true;
+			break;
+		case "id" : id = true;
+			break;
+		case "name" : name = true;
+			break;
+		case "age" : age = true;
+			break;
+		}
+	}
+	@Override
+	public void characters(char[] ch, int start, int length) throws SAXException {
+
+		System.out.println("character event");
+		String val = new String(ch, start, length);
+		if(id){
+			e.id = Integer.parseInt(val);
+			id =false;
+		} else if(name) {
+			e.name= val;
+			name = false;
+		} else if(age) {
+			e.age = Integer.parseInt(val);
+			age =false;
+		}
+	}
+	@Override
+	public void endElement(String uri, String localName, String qName) throws SAXException {
+		switch(qName) {
+		case "employee": eList.add(e);
+			employee =false;
+			break;
+		}
+		System.out.println(qName+"element ended");
+	}
+}

Class15/bin/com/david/class156/Example2.class

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+package com.david.class153;
+
+import java.io.IOException;
+
+import javax.xml.parsers.ParserConfigurationException;
+import javax.xml.parsers.SAXParser;
+import javax.xml.parsers.SAXParserFactory;
+
+import org.xml.sax.SAXException;
+
+public class Example1 {
+	public static void main(String[] args) {
+		EmployeeHandler handler = new EmployeeHandler();
+		try {
+			SAXParserFactory factory = SAXParserFactory.newInstance();
+			SAXParser saxParser = factory.newSAXParser();
+			saxParser.parse("./in/Company.xml", handler);
+		} catch (SAXException | IOException e) {
+			e.printStackTrace();
+		} catch (ParserConfigurationException e) {
+			e.printStackTrace();
+		}  
+		
+	}
+}

Class15/bin/module-info.class

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+package com.david.class154;
+
+public class Customer {
+	int id;
+	String name;
+	String address;
+	
+}