Javascript's null-undefined-NaN definitions and differences
In JavaScript, null, NaN, and undefined are strange falsy values unique to JavaScript that do not…
June 01, 2023
1 min
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How to use BigInteger in Java - 2
Big Integer calculation Because the BIGInteger data type is a class structure and a string, it is…
May 31, 2023
1 min
How to use BigInteger in Java
Java's int can be expressed as 4 bytes in memory size from -2,147,483,648 to 2,147,483,647, and long…
May 30, 2023
1 min
Java StringTokenizer - Cut String
🌱StringTokenizer class The StringTokenizer class is used to cut a string into multiple strings…
May 29, 2023
1 min
Java split - Cut String
🌱Split method in String class The split method provided in the String class is overloaded with two…
May 28, 2023
1 min
Exception Handling Precautions in Java
🌱1.Add logic such as logging, recovery, etc. to the catch It is not desirable to only catch…
May 27, 2023
1 min
3 Techniques for Exception Handling in Java
The exception to Java is not the end of a try-catch block. If an exception occurs, it is true that…
May 26, 2023
1 min
How to use Java variable arguments
Variable arguments (varargs) refer to grammar that dynamically accepts arguments and functions…
May 22, 2023
1 min
Using the StartsWith Method in Java in the String
String has a startsWith() method. This is a method used to compare the starting strings of the…
May 18, 2023
1 min
Using the substring method in Java
The substring method in the String class functions to return a part of the string in the range of…
May 18, 2023
1 min
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