JAVA EXAMPLE PROGRAMS

JAVA EXAMPLE PROGRAMS

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How to create and store property file dynamically?


Description:

We can also create property files dynamically. First creat Properties object, add all property key-value pair by using setProperty() method. Then write this file to FileOutputStream object to store is as a property file. Below example shows how to create it.


Code:
package com.java2novice.files;

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Properties;

public class MyPropertyFileStore {

	public static void main(String a[]) throws IOException{
		
		OutputStream os = null;
		Properties prop = new Properties();
		prop.setProperty("name", "java2novice");
		prop.setProperty("domain", "www.java2novice.com");
		prop.setProperty("email", "[email protected]");
		try {
			os = new FileOutputStream("MyProp.properties");
			prop.store(os, "Dynamic Property File");
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		}
		
	}
}
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Knowledge Centre
Difference between Enumeration and Iterator
The functionality of Enumeration and the Iterator are same. You can get remove() from Iterator to remove an element, while while Enumeration does not have remove() method. Using Enumeration you can only traverse and fetch the objects, where as using Iterator we can also add and remove the objects. So Iterator can be useful if you want to manipulate the list and Enumeration is for read-only access.
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Reference: Java™ Platform Standard Ed. 7 - API Specification | Java is registered trademark of Oracle.
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