This method returns true if the next token in this scanner's input can be interpreted as a long value in the default radix using the nextLong() method. This method returns true if there is another line in the input of this scanner. This method returns true if the next token in this scanner's input can be interpreted as an int value in the specified radix using the nextInt() method. This method returns true if the next token in this scanner's input can be interpreted as an int value in the default radix using the nextInt() method. This method Returns true if the next token in this scanner's input can be interpreted as a float value using the nextFloat() method. This method returns true if the next token in this scanner's input can be interpreted as a double value using the nextDouble() method. This method returns true if the next token in this scanner's input can be interpreted as a byte value in the specified radix using the nextByte() method. This method returns true if the next token in this scanner's input can be interpreted as a byte value in the default radix using the nextByte() method. This method returns true if the next token in this scanner's input can be interpreted as a boolean value using a case insensitive pattern created from the string 'true|false'. This method returns true if the next token in this scanner's input can be interpreted as a BigInteger in the specified radix using the nextBigInteger() method. This method returns true if the next token in this scanner's input can be interpreted as a BigInteger in the default radix using the nextBigInteger() method. This method returns true if the next token in this scanner's input can be interpreted as a BigDecimal using the nextBigDecimal() method. This method returns true if the next token matches the pattern constructed from the specified string. This method returns true if the next complete token matches the specified pattern. This method returns true if this scanner has another token in its input. String findWithinHorizon(String pattern, int horizon) This method attempts to find the next occurrence of the specified pattern.

String findWithinHorizon(Pattern pattern, int horizon) This method attempts to find the next occurrence of a pattern constructed from the specified string, ignoring delimiters. This method attempts to find the next occurrence of the specified pattern ignoring delimiters. This method returns the Pattern this Scanner is currently using to match delimiters. This constructs a new Scanner that produces values scanned from the specified string. Scanner(ReadableByteChannel source, String charsetName) This constructs a new Scanner that produces values scanned from the specified channel.

This constructs a new Scanner that produces values scanned from the specified source. Scanner(InputStream source, String charsetName) This constructs a new Scanner that produces values scanned from the specified input stream.

This constructs a new Scanner that produces values scanned from the specified file. The class is a simple text scanner which can parse primitive types and strings using regular expressions.Following are the important points about Scanner −Ī Scanner breaks its input into tokens using a delimiter pattern, which by default matches whitespace.Ī scanning operation may block waiting for input.Ī Scanner is not safe for multithreaded use without external synchronization.įollowing is the declaration for class −

Scanner java