Check all choices whose statements are true. Adding throws FileNotFoundException to the end of a method's header signifies we are reporting (and accepting) the possibility of the exception being generated by the method. The string Able was I ere\nI saw Elba is comprised of the following seven tokens: Able was I ere I saw Elba. This is because tokens are delineated in a string by whitespace. An exception due to input mismatch occurs when a Scanner object is expecting one data type but reads another incompatible type. We can generate and print to a file using PrintStream objects. Like Scanner objects, a PrintStream object can be declared and instantiated by passing a File object as a parameter.

FileNotFoundException When an attempt is made to open a file identified by a given pathname but is unsuccessful, Java's checked exception FileNotFoundException is thrown. When a file with the supplied pathname is either not there or is not accessible, the constructors for FileInputStream, FileOutputStream, and RandomAccessFile will throw this exception. PrintStream Another output stream gains capability from a PrintStream by being able to conveniently print representations of different data values. 1. Adding throws FileNotFoundException to the end of a method's header signifies we are reporting (and accepting) the possibility of the exception being generated by the method. Java's exceptions are the subject of some debate. There are two types of exceptions in it. crossed out and checked. Any exception that derives from RuntimeException or Error is unchecked and does not require being caught or explicitly declaring in a method signature that it is throwable. However, FileNotFound is a checked exception that needs to be handled or marked as throwable in the method signature. The core tenet is that checked exceptions are those from which you might be able to recover, while unchecked exceptions are those resulting from programming errors that are almost certainly irrecoverable. Reporting the possibility of the exception being generated by the method by adding throws FileNotFoundException. Hence, the mentioned statement is True 2. The string Able was I ere/nI saw Elba is comprised of the following seven tokens: Able was I ere I saw Elba. This is because tokens are delineated in a string by whitespace. In Java, White space can be defined as the horizontal tab character, ASCII space character or form feed character, and line terminator characters. As seen in the problem statement, the string is made with various words (such as Able, Was, I, and ere) along with spaces in between each of them. Therefore, this statement can be said to be True statement. 3. An exception due to input mismatch occurs when a scanner object is expecting one data type but reads another incompatible type. When the input is invalid for the intended type, an exception may occur. The input is either outside of the acceptable range or does not follow the pattern for the expected type. An InputMismatchException is raised, for instance, when a user enters a String value when a program expects an Integer value. When a user provides an incorrect type of input or input that is outside of the acceptable range, the InputMismatchException occurs. Simply, when the input type is incorrect, we receive the InputMismatchException. The Scanner throws the InputMismatchException when given a float value as input when it is expecting an integer. Hence, the mentioned statement is True 4. We can generate and print to a file using PrintStream objects Like Scanner objects, a PrintStream object can be declared and instantiated by passing a File object as a parameter. Another output stream gains capability from a PrintStream by being able to conveniently print representations of different data values. There are also two more features available. A PrintStream never throws an IOException, unlike other output streams; instead, exceptional circumstances only set an internal flag that may be checked using the checkError method. The flush function is automatically called after a byte array is written, one of the println methods is used, or a newline character or byte ('n') is written. Optionally, a PrintStream can be constructed to flush automatically. All characters printed by a PrintStream are converted into bytes using the platform's default character encoding. The PrintWriter class should be used when writing characters rather than bytes is required. Creating an instance of the PrintStream class by supplying the aforementioned File class object. calling the System class's out() function while passing a PrintStream object. Hence, the mentioned statement is True