Type « character « Java Data Type Q&A

1. How do you determine if a character requires the shift key to be down to be typed?    stackoverflow.com

I am writing some code to type strings using the Robot class. Everything is mostly good (well, I have to use a big switch statement to get character keycodes), except ...

2. the data type "char" in java    stackoverflow.com

why doesnt any of these work:

 char word = "sds";
 char word = 'sds';
 myDog.bark("voff");
 myDog.bark('voff');

 void bark(char word) {
     ...

3. Java: How to get Unicode name of a character (or its type category)?    stackoverflow.com

The Character class in Java defines methods which check a given char argument for equality with certain Unicode chars or for belonging to some type category. These chars and ...

4. short and char type in Java    stackoverflow.com

according to the Java standard the short and char types both use 2 bytes so when i code something like

char ch = 'c';
short s = ch;

5. Use a robot to type characters in Java    stackoverflow.com

I know how to have Robot simulate a Y keypress like so:

    Robot.keyPress(KeyEvent.VK_Y);

".  

6. The char type in Java behaves somewhat in a strange way?    stackoverflow.com

Let's consider the following simple expressions in Java.

char c='A';
int i=c+1;

System.out.println("i = "+i);

7. Type of Character generated by UUID    stackoverflow.com

1. Does java.util.UUID generates special characters?
2. What are the type of each character (eg- Uppercase, lower case, digits) generated by UUID.

8. Why doesn't character datatype take up more than one character ?    bytes.com

kk. you knw by any method i can convert string to char ??? like i entered + as string datatype but want to convert it to + of char datatype

9. Java char data type problem    bytes.com

There is an error because in Java we have char datatype containing only one char. If you want to store more than one char, you have to use String class.

10. bytecode differences, string + and type of char[]    coderanch.com

I'm trying to understand byte code generated by bcj and javac with regards to string concatenation. For the following lines char ar[] = {'a','b'}; System.out.println("*"+ar+'*'); //second * is a char bcj byte code when run with java produces *ab* while javac byte code when run with java produces *[C@4abc9* Looking at the byte code, the key lines seem to be bcj ...

11. Char type    coderanch.com

Thanks Rob and Marc. I understood the fact that char type does not take negative values. May be i am thinking of it at the bit level and confusing my self. I am not still very clear about it. My doubt is short 90 is 0000 0000 0101 1010 short -90 is 1111 1111 1010 0110 Now if we put 1111 ...

12. need clairifications about char type    coderanch.com

13. type casting a character    coderanch.com

short is a signed integer and its values can range from -32768 to 32767. Character is an insigned integer and values can range from 0 to 65535 If a charactet has a value of less than 32767 then it can be type casted to same value as short. What happens if a character has vaue of more than 32767 ? If ...

14. Java char data type problem    coderanch.com

class Char_Demo { public static void main(String[] n) { // we all know we can store a character literal like A or B in an char variable char c='A'; System.out.println("Character c has" +c ); // output is A // we can even store the ASCII value for A char c1=65; System.out.println("Character c1 has" +c1 ); // output is A //But now ...

15. char datatype    java-forums.org

16. what is the use of char type=in.nextLine().toUpperCase().toUpperCaseArray( )[0]; ?    java-forums.org

import java.util.Scanner; public class weight1 { public static void main(String[] args){ Scanner in = new Scanner(System.in); System.out.println("Enter pounds or ounce as your original unit of weight (P/O): "); char type = in.nextLine().toUpperCase().toCharArray()[0]; System.out.println("Enter your weight: "); double weight = in.nextDouble(); switch(type){ case 'P': System.out.println(weight + " pounds is " + (weight * 0.453592) + " in kilograms and " + ( ...

17. incompatible type, string or char    forums.oracle.com

18. how to type " char?    forums.oracle.com

19. Type casting by char    forums.oracle.com

for the code:- public class s{ public static void main(String[] args){ System.out.println("Why this output ...................."+(char)-100); } } i get output as :- Why this output ....................? (char)-100 gives a question mark.. im not getting why. we can put any num greater than 0 instead of 100... it will give '?'. char is unsigned datatype... may be it has to do sth. ...

20. chars typed    forums.oracle.com

21. Selection Sorting of Data type (Char)    forums.oracle.com

22. regarding the data type char    forums.oracle.com

ty for the info, but i decided to take into account char because i got another problem. i've created a class with methods that is accessed from other class and when i enter multiple words for the string methods with spaces eg "i am" instead of "iam" it jumps to the last method which is a boolean. i don't know if ...

23. Using the StringTokenizer But Have a Delimiter of "char" type    forums.oracle.com

24. Char Data type    forums.oracle.com

25. how to use char in the return type    forums.oracle.com

26. Catching errors such as divide by zero and typing non-numeric characters    forums.oracle.com

//Invoke user response System.out.print("Please enter first digit "); firstdigit = myIn.readLine(); first = Integer.parseInt(firstdigit); System.out.print("Please enter second digit "); seconddigit = myIn.readLine(); second = Integer.parseInt(seconddigit); //computations sum = first + second; average = (double)sum / (double)2; division = (float)first / (float)second; modus = first % second; power = (int)Math.pow(first, second); //Screen message System.out.println("Sum: " + sum); System.out.println("Average: " + average); System.out.println("Division: ...