StdIn

java.lang.Object
- StdIn

```
public final class StdIn
extends java.lang.Object
```
Standard input. This class provides methods for reading strings and numbers from standard input. See the technical information in the documentation of the In class, which applies to this class as well.
See Section 1.5 of "Introduction to Programming in Java: An Interdisciplinary Approach" by Robert Sedgewick and Kevin Wayne.

Method Summary

Methods
Modifier and Type	Method and Description
`static boolean`	`hasNextChar()` Is the input empty (not even whitespace)? Use this to know whether the next call to `readChar()` will succeed.
`static boolean`	`hasNextLine()` Does the input have a next line? Use this to know whether the next call to `readLine()` will succeed.
`static boolean`	`isEmpty()` Is the input empty (except possibly for whitespace)? (A whitespace is a space, or a tab, or a newline, etc.) Use this to know whether the next call to `readString()`, `readDouble()`, etc will succeed.
`static void`	`main(java.lang.String[] args)` Interactive test of basic functionality.
`static java.lang.String`	`readAll()` Read and return the remainder of the input as a string.
`static double[]`	`readAllDoubles()` Read all doubles until the end of input is reached, and return them.
`static int[]`	`readAllInts()` Read all ints until the end of input is reached, and return them.
`static java.lang.String[]`	`readAllStrings()` Read all strings until the end of input is reached, and return them.
`static boolean`	`readBoolean()` Read and return the next boolean, allowing case-insensitive "true" or "1" for true, and "false" or "0" for false.
`static byte`	`readByte()` Lê e devolve o próximo byte.
`static char`	`readChar()` Read and return the next character.
`static double`	`readDouble()` Lê e devolve o próximo double.
`static double[]`	`readDoubles()` Deprecated. For more consistency, use `readAllDoubles()`
`static float`	`readFloat()` Lê e devolve o próximo float.
`static int`	`readInt()` Read and return the next int.
`static int[]`	`readInts()` DEPRECATED: For more consistency, use readAllInts().
`static java.lang.String`	`readLine()` Read and return the next line.
`static long`	`readLong()` Lê e devolve o próximo long.
`static short`	`readShort()` Lê e devolve o próximo short.
`static java.lang.String`	`readString()` Read and return the next string.
`static java.lang.String[]`	`readStrings()` Deprecated. For more consistency, use `readAllStrings()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - isEmpty
```
public static boolean isEmpty()
```
    Is the input empty (except possibly for whitespace)? (A whitespace is a space, or a tab, or a newline, etc.) Use this to know whether the next call to readString(), readDouble(), etc will succeed.
  - hasNextLine
```
public static boolean hasNextLine()
```
    Does the input have a next line? Use this to know whether the next call to readLine() will succeed. Functionally equivalent to hasNextChar().
  - hasNextChar
```
public static boolean hasNextChar()
```
    Is the input empty (not even whitespace)? Use this to know whether the next call to readChar() will succeed. Functionally equivalent to hasNextLine().
  - readLine
```
public static java.lang.String readLine()
```
    Read and return the next line.
  - readChar
```
public static char readChar()
```
    Read and return the next character.
  - readAll
```
public static java.lang.String readAll()
```
    Read and return the remainder of the input as a string.
  - readString
```
public static java.lang.String readString()
```
    Read and return the next string. Uses whitespaces (space, tab, newline, etc.) as delimiters.
  - readInt
```
public static int readInt()
```
    Read and return the next int.
  - readDouble
```
public static double readDouble()
```
    Lê e devolve o próximo double.
  - readFloat
```
public static float readFloat()
```
    Lê e devolve o próximo float.
  - readLong
```
public static long readLong()
```
    Lê e devolve o próximo long.
  - readShort
```
public static short readShort()
```
    Lê e devolve o próximo short.
  - readByte
```
public static byte readByte()
```
    Lê e devolve o próximo byte.
  - readBoolean
```
public static boolean readBoolean()
```
    Read and return the next boolean, allowing case-insensitive "true" or "1" for true, and "false" or "0" for false.
  - readAllStrings
```
public static java.lang.String[] readAllStrings()
```
    Read all strings until the end of input is reached, and return them.
  - readAllInts
```
public static int[] readAllInts()
```
    Read all ints until the end of input is reached, and return them.
  - readAllDoubles
```
public static double[] readAllDoubles()
```
    Read all doubles until the end of input is reached, and return them.
  - readInts
```
public static int[] readInts()
```
    DEPRECATED: For more consistency, use readAllInts(). Reads all ints from stdin.
  - readDoubles
```
public static double[] readDoubles()
```
    Deprecated. For more consistency, use readAllDoubles()
    
    Reads all doubles from stdin.
  - readStrings
```
public static java.lang.String[] readStrings()
```
    Deprecated. For more consistency, use readAllStrings()
    
    Reads all Strings from stdin.
  - main
```
public static void main(java.lang.String[] args)
```
    Interactive test of basic functionality.

Class StdIn

Method Summary

Methods inherited from class java.lang.Object

Method Detail

isEmpty

hasNextLine

hasNextChar

readLine

readChar

readAll

readString

readInt

readDouble

readFloat

readLong

readShort

readByte

readBoolean

readAllStrings

readAllInts

readAllDoubles

readInts

readDoubles

readStrings

main