What is a Property class ?
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Q1.
What is a Property class ?
Core Java
Ans. The properties class is a subclass of Hashtable that can be read from or written to a stream.
Sample Code for Load Properties using Property Class
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 java   collections   hashtable   map   synchronization   synchronized
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//Double Checked Locking Code
public static Singleton createInstance() {
if(singleton == null){
synchronized(Singleton.class) {
if(singleton == null) {
singleton = new Singleton();
}
}
}
return singleton;
}
//Single checked locking code
public static Singleton createInstance() {
synchronized(Singleton.class) {
if(singleton == null) {
singleton = new Singleton();
}
}
return singleton;
}
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