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In this Java programming quick tip tutorial, developers will learn how to remove a system property using the System.getProperty method. This technique is illustrated in the Java code example below:
*/
import java.util.*;
public class DoubleBraces {
public static void main(String[] args)
{
DoubleBraces doubleBraces = new DoubleBraces();
doubleBraces.proceed();
}
private void proceed()
{
//Ideal way of initializing the arrayList
List arrayList = new ArrayList();
arrayList.add("One");
arrayList.add("Two");
arrayList.add("Three");
//Initializing using the double braces way {{ }}
List arrayList2 = new ArrayList() {{
add("One");
add("Two");
add("Three");
}};
System.out.println("ArrayList initialized the ideal way: " + arrayList);
System.out.println("ArrayList initialized the double braces way: " + arrayList2);
}
}
/*
Running this code example will result in the following output:
[root@mypc]# java DoubleBraces ArrayList initialized the ideal way: [One, Two, Three] ArrayList initialized the double braces way: [One, Two, Three]
