Simple Java Program to understand String Manipulation

/*
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Simple Java Program to understand String Manipulation
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*/
class VeryComplexHelloWorld{

public static void main(String args[]){
int i,j;
String helloworldmessage=" HelloWorld ";
String helloworld="H-E-L-L-O-W-O-R-L-D";
String[] listofchars;
String helloworldobtianedafterspliting="";
listofchars= helloworld.split("-");//splitting a string based on a delimiter
j=listofchars.length;//getting the length of an array
System.out.println("This Program does numerous manipulations to generate the Hello World message");
for(i=0;ihelloworldobtianedafterspliting=helloworldobtianedafterspliting.concat(listofchars[i]);//Concatinating strings
}
helloworldmessage=helloworldmessage.trim();//to remove leading and trailing spaces
helloworldmessage=helloworldmessage.toUpperCase();//Converting all characters of string to uppercase
if(helloworldmessage.equals(helloworldobtianedafterspliting)){//to compare two strings
System.out.println(helloworldmessage);
}
}
}
/*
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Output of Complex Hello World
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C:\Users\flower\Documents\javaprogs>javac VeryComplexHelloWorld.java

C:\Users\flower\Documents\javaprogs>java VeryComplexHelloWorld
This Program does numerous manipulations to generate the Hello World message
HELLOWORLD

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*/