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.
Returns true if there is another line in the input of this scanner. 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. 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. Returns true if the next token in this scanner’s input can be interpreted as a float value using the nextFloat() method. Returns true if the next token in this scanner’s input can be interpreted as a double value using the nextDouble() 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. 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. 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”. 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. 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. Returns true if the next token in this scanner’s Java input can be interpreted as a BigDecimal using the nextBigDecimal() method. Returns true if the next token matches the pattern constructed from the specified string. Returns true if the next complete token matches the specified pattern. Returns true if this scanner has another token in its input. Returns the Pattern this Scanner is currently using to match delimiters.Īttempts to find the next occurrence of a pattern constructed from the specified string, ignoring delimiters.Īttempts to find the next occurrence of the specified pattern ignoring delimiters.įindWithinHorizon(Pattern pattern, int horizon)Īttempts to find the next occurrence of the specified pattern.įindWithinHorizon(String pattern, int horizon) Here is a list of the Methods in the Java scanner class. Scanner(ReadableByteChannel source, String charsetName)Ĭonstructs a new Scanner that produces values scanned from the specified string. Scanner(InputStream source, String charsetName)Ĭonstructs a new Scanner that produces values scanned from the specified source.Ĭonstructs a new Scanner that produces values scanned from the specified channel. Here is a list of the Constructors in the Java scanner Class.Ĭonstructs a new Scanner that produces values scanned from the specified file.Ĭonstructs a new Scanner that produces values scanned from the specified Java input stream. Since the Scanner class is in the java.util package, you’ll want to include an import statement whenever you use this class. To complete the entry, the user presses the Enter key.
When one of the methods of the Scanner class is run, the application waits for the user to enter data with the keyboard. And to read all of the data on a line, you use the nextLine method. To read double data, you use the the nextDouble method.
To read integer data, you use the nextInt method. To read string data, for example, you use the next method.
The method you use depends on the type of data you need to read. Once you’ve created a Scanner object, you can use the next methods to read data from the console.
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