1+ [
2+ {
3+ "categoryName" : " Basics"
4+ "snippets" : [
5+ {
6+ "title" : " Hello, World!"
7+ "description" : " Prints Hello, World! to the terminal."
8+ "code" : [
9+ " public class HelloWorld {"
10+ " public static void main(String[] args) {"
11+ " // Output: \" Hello, World!\" "
12+ " System.out.println(\" Hello, World!\" );"
13+ " }"
14+ " }"
15+ ],
16+ "tags" : [" java" " hello-world"
17+ "author" : " axorax"
18+ }
19+ ]
20+ },
21+ {
22+ "categoryName" : " String Manipulation"
23+ "snippets" : [
24+ {
25+ "title" : " Reverse String"
26+ "description" : " Reverses the characters in a string."
27+ "code" : [
28+ " public class StringManipulation {"
29+ " public static String reverseString(String s) {"
30+ " StringBuilder reversed = new StringBuilder(s);"
31+ " return reversed.reverse().toString();"
32+ " }"
33+ " "
34+ " // Usage:"
35+ " public static void main(String[] args) {"
36+ " System.out.println(reverseString('hello')); // Output: 'olleh'"
37+ " }"
38+ " }"
39+ ],
40+ "tags" : [" java" " string" " reverse" " utility"
41+ "author" : " axorax"
42+ },
43+ {
44+ "title" : " Check Palindrome"
45+ "description" : " Checks if a string is a palindrome."
46+ "code" : [
47+ " public class StringManipulation {"
48+ " public static boolean isPalindrome(String s) {"
49+ " String cleanString = s.replaceAll(\"\\ s+\" , \"\" ).toLowerCase();"
50+ " StringBuilder reversed = new StringBuilder(cleanString);"
51+ " return cleanString.equals(reversed.reverse().toString());"
52+ " }"
53+ " "
54+ " // Usage:"
55+ " public static void main(String[] args) {"
56+ " System.out.println(isPalindrome('A man a plan a canal Panama')); // Output: true"
57+ " }"
58+ " }"
59+ ],
60+ "tags" : [" java" " string" " palindrome" " check"
61+ "author" : " axorax"
62+ },
63+ {
64+ "title" : " Count Vowels"
65+ "description" : " Counts the number of vowels in a string."
66+ "code" : [
67+ " public class StringManipulation {"
68+ " public static int countVowels(String s) {"
69+ " int count = 0;"
70+ " String vowels = 'aeiouAEIOU';"
71+ " for (int i = 0; i < s.length(); i++) {"
72+ " if (vowels.indexOf(s.charAt(i)) != -1) {"
73+ " count++;"
74+ " }"
75+ " }"
76+ " return count;"
77+ " }"
78+ " "
79+ " // Usage:"
80+ " public static void main(String[] args) {"
81+ " System.out.println(countVowels('hello')); // Output: 2"
82+ " }"
83+ " }"
84+ ],
85+ "tags" : [" java" " string" " vowels" " count"
86+ "author" : " axorax"
87+ },
88+ {
89+ "title" : " Find Substring First Occurrence"
90+ "description" : " Finds the first occurrence of a substring in a string."
91+ "code" : [
92+ " public class StringManipulation {"
93+ " public static int findSubstring(String s, String substring) {"
94+ " return s.indexOf(substring);"
95+ " }"
96+ " "
97+ " // Usage:"
98+ " public static void main(String[] args) {"
99+ " System.out.println(findSubstring('hello world', 'world')); // Output: 6"
100+ " }"
101+ " }"
102+ ],
103+ "tags" : [" java" " string" " substring" " search"
104+ "author" : " axorax"
105+ },
106+ {
107+ "title" : " Capitalize First Letter"
108+ "description" : " Capitalizes the first letter of a string."
109+ "code" : [
110+ " public class StringManipulation {"
111+ " public static String capitalizeFirstLetter(String s) {"
112+ " if (s == null || s.isEmpty()) {"
113+ " return s;"
114+ " }"
115+ " return s.substring(0, 1).toUpperCase() + s.substring(1);"
116+ " }"
117+ " "
118+ " // Usage:"
119+ " public static void main(String[] args) {"
120+ " System.out.println(capitalizeFirstLetter('hello')); // Output: 'Hello'"
121+ " }"
122+ " }"
123+ ],
124+ "tags" : [" java" " string" " capitalize" " utility"
125+ "author" : " axorax"
126+ }
127+ ]
128+ }
129+ ]
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