Puzzle Difficulty
&? *nix shell 439
-XX:+UseCompressedOops language=java jvm memory 838
-XX:StringTableSize language=java jvm optimization performance 793
2>&1 unix 786
== vs === in JavaScript language=javascript operators 481
A Record networking 815
API definition software 391
ATS ios security acronym 779
Anonymous Inner Class language=java classes 754
Anonymous Inner Class language=java classes 750
Anonymous Inner Class language=java classes 798
Array Rotate Left arrays data-structure language=java coding 1,185
ArrayList vs Vector comparison 1,188
Aspect Oriented Programming definition 348
Baud Rate definition 245
Byte definition 0
CSRF definition security 1,173
Canonicalize a Unix Path unix coding 880
Capitalize First Letter strings coding 1,213
Catastrophic Failover 800
Check Positive Integral regular-expressions language=java coding 1,142
Check Software Version Numbers coding strings 856
Class Variable language=java 427
Code Snippet language=java operators 798
Comparable vs Comparator language=java 0
Convert a Binary Number to an Integral algorithm binary coding 1,059
Count Nodes in Linked List data-structure lists coding 791
Create an Instance with Reflection reflection language=jave 798
Currying currying 300
DAG data-structure graphs acronym 778
DRY Principle definition design-principle 413
Default Access Modifier language=java 600
Duplicate Element in Set language=java 800
Factorial 799
Fibonacci 1 recursion coding algorithm 1,232
Find Gold - String search Strings language=java 577
Find the Bug bug language=java 763
Find the Latest Version Number coding 998
Find the coding error debugging 796
Find the first Non-duplicated character in a string language=java string 800
Firewall definition security networking 785
Four Nines systems high-availability 865
Gantt Chart definition planning 1,152
HTTP definition 265
HTTP Status Code 200 http 798
HTTP Status Code 403 http 813
HTTP Status Code 500 http status-code 802
HashMap hashmap data-structure language=java 685
Hashmap language=java data-structure 864
How Can You Get the Base 2 Logarithm of an Integer? math language=java 1,173
How Do You Make an Object Immutable in Java? design language=java immutable 1,242
Identify Context Switching on Linux devops unix 1,200
Identify the First Nonrepeating Character in a String coding strings 1,221
Immutable Class core-principles design object-oriented 764
Implement wc language=java unix strings algorithm coding 827
Inserting Into a Binary Heap data-structure heap 809
Instance Variable 796
Interview: 5 Years interview 0
Interview: Big O interview big-o 0
Interview: Development Environment interview 0
Interview: Failure interview 0
Interview: Go-to Tools interview 0
Interview: Ideal Project interview 0
Interview: Inheritance interview object-oriented 0
Interview: Java Exceptions interview java exception-handling 0
Interview: Java Weaknesses interview java 0
Interview: Learning Style interview 0
Interview: Programming Interest interview 0
Interview: Security interview 0
Interview: Self Improvement interview 0
Interview: Technical Hurdle interview 0
Interview: Technology Championing interview 0
Interview: Technology Interests interview 0
Interview: Weaknesses interview 0
Interview: Websites interview 0
Invert Boolean language=java operators 798
Invoking Thread.start() Multiple Times concurrency language=java 763
Is Anagram? algorithms strings coding 1,026
Java Integer language=java 738
Java Method Overloading 791
Java overriding method 800
KISS Principle definition 372
Linked List a Palindrome? linked-list lists data-structures 654
List Coefficients coding strings 786
Load Factor 918
Loop a LInked List linked-lists datastructure 803
MB definition 1,077
Match Common Telephone Number regular-expressions language=java coding 1,247
Number of Bits for a Positive Integer math bits coding 1,183
Only Unique Characters in a String algorithm strings coding 891
Palindrome algorithm strings coding 1,209
Pasta Theory of Programming definition 404
Power of 2 coding 1,208
ROT13 cryptography algorithm coding language=java 1,212
Random Weighted: Red, White, Blue, and Purple coding language=java algorithm 977
Return the secret message language=java strings coding 800
Reverse Integer coding 867
Reverse a String coding language=java strings 838
Reverse the Words in a Sentence 1 strings algorithm coding 1,216
SPF email networking 394
SQL Injection security sql database 381
SYN-ACK networking 800
Semantic Versioning definitions 798
Short-Circuit Operator operators 798
Simple Derivative string math coding 784
Singly Linked List Even or Odd? linked-lists lists data-structures coding 630
Smoke Testing definition qa testing 318
Some Stupid Bugs: Postfix Operators tips bugs postfix 0
Spell a Linked List linked-list data-structures lists 683
String Interning language=java strings 1,190
StringBuilder vs StringBuffer 766
Strip Phone: Part 1 regular-expression language=java 441
Strip Phone: Part 2 regular-expression language=java 400
Sum an Integer sequence recursively 786
TB definition acronym 321
TLA definition acronym 522
TLD definition acronym networking 232
Tenets of OO object-oriented 765
Test String Length Java String coding 808
Transient Variable language=java serialization 800
Troubleshoot: Regular Expression troubleshooting debugging regular-expressions language=java coding 856
Troubleshooting: Regular Expressions troubleshooting debugging regular-expressions language=java coding 871
Truthy javascript 776
UI definition acronym 1,144
URL Encoding 1 (Replace Spaces) strings 800
What Base Does Math.log() Use? math language=java 653
What is NUMA? memory 300
What is Shell Globbing definition 746
What is Social Engineering? definition acronym security 1,152
What is Two Factor Authentication security 1,173
What is a Fetch Execute Cycle definition acronym 1,261
What is nonce cryptography security 1,116
Will this compile? java 808
Will this compile? java 787
Write Only Code definition anti-pattern 651
XSS definition security 554
Zero-day Vulnerability security 843
\1 regular-expressions 786
java.util.HashMap hashmap data-structures language=java 846