The class at the top of the exception class hierarchy is the Throwable class, which is a direct subclass of the Object class. Java exceptions can be of several types and all exception types are organized in a fundamental hierarchy. This is generally an unexpected or unwanted event which can occur either at compile-time or run-time in application code. StringCharAtExample.In Java âan event that occurs during the execution of a program that disrupts the normal flow of instructionsâ is called an exception. Important: Notice that all constructor methods in the String that contain an array in their argument list, throw an when the specified offset and count are invalid. ![]() It throws an if any index is negative, or if offset + count is larger than the size of the specified array. This method returns the string representation of the specified sub-array argument. public static String valueOf(char data, int offset, int count).It throws an if any index is negative, or endIndex is larger than the stringâs legnth, or the beginIndex is greater than CharSequence subSequence(int beginIndex, int endIndex).If the specified index does not belong in this interval, then an is thrown. This methods returns the character of the specified index. The following methods throw an when the specified arguments are invalid: The StringIndexOutOfBoundsException in Java The string argument indicates the name of the class that threw the error. StringIndexOutOfBoundsException(String s)Ĭreates an instance of the class, using the specified string as message.StringIndexOutOfBoundsException(int index)Ĭreates an instance of the class with the specified argument indicating the illegal index.The Structure of StringIndexOutOfBoundsException ConstructorsĬreates an instance of the class, setting null as its message. ![]() ![]() ![]() It is an unchecked exception and thus, it does not need to be declared in a methodâs or a constructorâs throws clause.įinally, the exists since the 1.0 version of Java. The class extends the IndexOutOfBoundsException class, which is used to indicate that an index to either an array, a string, or a vector, is out of range.įurthermore, the IndexOutOfBoundsException extends the RuntimeException class and thus, belongs to those exceptions that can be thrown during the operation of the Java Virtual Machine (JVM). Moreover, some methods of the String class thrown this exception, when the specified index is equal to the size of the string. This exception is thrown by the methods of the String class, in order to indicate that an index is either negative, or greater than the size of the string itself. In this tutorial we will discuss about the in Java.
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