The charAt() method is used to provide a single character by its index within a string.
The charAt() method is used to provide a single character by its index within a string.
Questions tagged [charat]
292 questions
3
votes
5 answers
For loop can 'see' forthcoming values in current iteration?
I am working my way through CodingBat's Java exercises and I came across the CountXX problem, which counts the amount of times xx appears in a string. Here is how I solved it (I wasn't expecting it to work):
int countXX(String str) {
int count =…
alanbuchanan
- 3,993
- 7
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3
votes
2 answers
Beginner java using charAt and using user input to display characters
import javax.swing.JOptionPane;
public class MyJavaProgramTask4Exercise3 {
public static void main(String[] args) {
String Namestudent, studentID;
Namestudent = JOptionPane.showInputDialog("Type in a student name: ");
…
paulc01
- 41
- 5
3
votes
7 answers
string index out of bounds error in java (charAt)
Quick question. I have this code in a program:
input = JOptionPane.showInputDialog("Enter any word below")
int i = 0;
for (int j = 0; j <= input.length(); j++)
{
System.out.print(input.charAt(i));
System.out.print(" "); //don't ask…
Kyle
- 299
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3
votes
2 answers
Android. Strange crash in charAt (setSelection)
I have a very strange crash in application.
Stacktrace:
java.lang.IndexOutOfBoundsException: charAt: -1 < 0
at android.text.SpannableStringBuilder.charAt(SpannableStringBuilder.java:112)
at android.text.Selection.setSelection(Selection.java:84)
at…
Yuriy Aizenberg
- 373
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2
votes
1 answer
Java function charAt
Can anyone tell me what this snippet of code does? In my understanding it returns the sum of the indexes in the string, for example, in string is "Hello" it would return 10? AM I wrong here, please let me know…
public String decrString(final String…
Darya Rioux
- 29
- 2
2
votes
1 answer
i want to print the value of "i" from 0 to 1000
/*how ican make String.fromCharCode(i)
i take value from 0 to 1000 so print out letter every time */
JavaScript For Loop