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char

How-to articles, tricks, and solutions about CHAR

Comparing chars in Java

To compare two char values in Java, you can use the == operator, just like you would with any other primitive type. For example:

java char comparison

Convert int to char in java

To convert an int value to a char value in Java, you can use the char type's conversion method, (char).

java int char

How to convert a char array back to a string?

To convert a char array back to a String in Java, you can use the String class's constructor that takes a char array as an argument.

java string arrays char

How to convert a char to a String?

To convert a char to a String in Java, you can use the Character.toString method or the String.valueOf method.

java string type-conversion char

How to convert/parse from String to char in java?

In Java, you can convert a string to a character using the charAt() method of the String class. This method takes an index as an argument and returns the character at that index.

java string parsing char

Java: parse int value from a char

To parse an integer value from a char in Java, you can use the Character.getNumericValue() method.

java parsing int char parseint

Take a char input from the Scanner

To take a character input from the Scanner in Java, you can use the next() method to read a string and then use the charAt(int index) method to get the first character of that string. Here's an example:

java input char java.util.scanner

What is the best way to tell if a character is a letter or number in Java without using regexes?

To tell if a character is a letter or number in Java without using regexes, you can use the Character class and its isLetter() and isDigit() methods.

java char numbers letter

Why is char[] preferred over String for passwords?

It is generally considered more secure to use a char[] array to store passwords because it can be wiped from memory more easily than a String object.

java string char security passwords