How to Convert/Parse from String to Char in Java

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

If your string contains exactly one character the simplest way to convert it to a character is probably to call the charAt method:

char c = s.charAt(0);

Converting String to Character array in Java

Use this:

String str = "testString";
char[] charArray = str.toCharArray();
Character[] charObjectArray = ArrayUtils.toObject(charArray);

How to Convert String to Char and Integer in Java ?

A simple way to achieve that (if you don't want to use Regex) is to do something like this:

String temp ="";
// read every char in the input String
for(char c: input.toCharArray()){
   // if it's a digit
   if(Character.isDigit(c)){
       temp +=c; // append it
   }
   else{ // at the end parse the temp String
        data = Integer.parseInt(temp);
        opr = c;
        break;
   }
}

//test
System.out.println("Input: " + input 
                    + "\t Data: " + data
                    + "\t Opr: " + opr);

Test

Input: 5*    Data: 5     Opr: *
Input: 123*  Data: 123   Opr: *

How to convert string = \t to char

if ("\\t".equals(sTerminatedBy)) {
  separator = '\t';
} else if (null == sTerminatedBy || "".equals(sTerminatedBy)) {
  separator = ' ';
} else {
  separator = sTerminatedBy.charAt(0);
}

Converting String to char when String is a valid char

If you strip off the 0x prefix for your hex String representation, you can use Integer.parseInt and cast to char.

See edit below for an alternative (possibly more elegant solution).

String s = "0x7D";
//                  | casting to char
//                  |    | parsing integer ...
//                  |    |                | on stripped off String ...
//                  |    |                |               | with hex radix
System.out.println((char)Integer.parseInt(s.substring(2), 16));

Output

}

Edit

As njzk2 points out:

System.out.println((char)(int)Integer.decode(s));

... will work as well.

How do I parse a char from a String?

This will give you last char in String whatever the length of String is because we are getting char at position String.legth() - 1.

String input = "1000 c";
char type = input.charAt(input.length()-1);
System.out.println(type);

How to convert char to String in tokenizer in Java

Try

char party = st.nextToken().charAt(0);

Convert character to ASCII numeric value in java

Very simple. Just cast your char as an int.

char character = 'a';    
int ascii = (int) character;

In your case, you need to get the specific Character from the String first and then cast it.

char character = name.charAt(0); // This gives the character 'a'
int ascii = (int) character; // ascii is now 97.

Though cast is not required explicitly, but its improves readability.

int ascii = character; // Even this will do the trick.

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