Software Development

Weird Funny Java!

Sometimes we can do really weird and funny things with Java; Some other times we are just being creative!

Take a look at the following three examples and you will find out what I mean!

Have Fun!

Strine translator

Translating to Strine ;)
 

public static void main(String... args) {
        System.out.println("Hello World");
    }

    static {
        try {
            Field value = String.class.getDeclaredField("value");
            value.setAccessible(true);
            value.set("Hello World", value.get("G'Day Mate."));
        } catch (Exception e) {
            throw new AssertionError(e);
        }
    }

prints

G’Day Mate.

BTW: Strine is the Australian Dialect of English.

Randomly not so random

In a random sequence, all sequences are equally likely, even not so random ones.

Random random = new Random(441287210);
    for(int i=0;i<10;i++)
        System.out.print(random.nextInt(10)+" ");
    }

prints 1 1 1 1 1 1 1 1 1 1

and

Random random = new Random(-6732303926L);
    for(int i=0;i<10;i++)
        System.out.println(random.nextInt(10)+" ");
    }

prints 0 1 2 3 4 5 6 7 8 9

Lastly

public static void main(String ... args) {
    System.out.println(randomString(-229985452)+' '+randomString(-147909649));
}

public static String randomString(int seed) {
    Random rand = new Random(seed);
    StringBuilder sb = new StringBuilder();
    for(int i=0;;i++) {
        int n = rand.nextInt(27);
        if (n == 0) break;
        sb.append((char) ('`' + n));
    }
    return sb.toString();
}

prints hello world

Java plus

A confusing piece of code here for you to parse. ;)

int i = (byte) + (char) - (int) + (long) - 1;
System.out.println(i);

prints 1

Reference: Java plusRandomly not so random and Strine translator from our JCG partner Peter Lawrey at the Vanilla Java.

Related Articles:

Want to know how to develop your skillset to become a Java Rockstar?

Join our newsletter to start rocking!

To get you started we give you our best selling eBooks for FREE!

 

1. JPA Mini Book

2. JVM Troubleshooting Guide

3. JUnit Tutorial for Unit Testing

4. Java Annotations Tutorial

5. Java Interview Questions

6. Spring Interview Questions

7. Android UI Design

 

and many more ....

 

Receive Java & Developer job alerts in your Area

I have read and agree to the terms & conditions

 

Subscribe
Notify of
guest

This site uses Akismet to reduce spam. Learn how your comment data is processed.

5 Comments
Oldest
Newest Most Voted
Inline Feedbacks
View all comments
DP2010
DP2010
10 years ago

For the confusing piece of code, (long) puts a curse on the next character. It does it if you put “;” for the rest of the expression, too. Putting “+ 0” after (long) removes the curse. I don’t know why. Magic isn’t big on explanation.

apprentice
apprentice
10 years ago

Out of curiosity, did you brute-force to find the seed that’d produce “Hello, World”? Or is there an easier way to do that?

Johan
Johan
10 years ago

haha biggest noob programmer i ever seen

Stephen
Stephen
6 years ago

this is confusing, I don’t tske any iterest in programming, but I find it interesting

Stephen
Stephen
6 years ago
Reply to  Stephen

take*

Back to top button