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Java String.charAt()
Last modified: November 9, 2017
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The method charAt() returns the character at the specified index. The index value must be between 0 and String.length() – 1.
Available Signatures
public char charAt(int index)Example
@Test
public void whenCallCharAt_thenCorrect() {
assertEquals('P', "Paul".charAt(0));
}Throws
- IndexOutOfBoundsException – if a non-existent or a negative index is passed to the method
@Test(expected = IndexOutOfBoundsException.class)
public void whenCharAtOnNonExistingIndex_thenIndexOutOfBoundsExceptionThrown() {
int character = "Paul".charAt(4);
}
