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What is the method read the string in Java?

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What is the method read the string in Java?

The read() method of StringReader Class in Java is used to read a single character from the stream….This method blocks the stream till:

  1. It has taken some input from the stream.
  2. Some IOException has occurred.
  3. It has reached the end of the stream while reading.

How do I scan a string line in Java?

Example 1

  1. import java.util.*;
  2. public class ScannerNextLineExample1 {
  3. public static void main(String args[]){
  4. Scanner scan = new Scanner(System.in);
  5. System.out.print(“Enter Item ID: “);
  6. String itemID = scan.nextLine();
  7. System.out.print(“Enter Item price: “);
  8. String priceStr = scan.nextLine();

How do you read a character in a string in Java?

To read a character in Java, we use next() method followed by charAt(0). The next() method returns the next token/ word in the input as a string and chatAt() method returns the first character in that string. We use the next() and charAt() method in the following way to read a character.

How do you read a string line?

Linked

  1. Count the number of lines in a Java String.
  2. Buffered Reader readLine() with Empty lines.
  3. java getting Last line(fastest way) from a String Variable.
  4. -2. Read specific line out of String.
  5. Java parse contents of a string into lines, auto-detecting line type.
  6. -1. 2D array conversion (an integer to a string)
  7. -1.

What is nextLine method in Java?

nextLine() The nextLine() method of the java. util. Scanner class scans from the current position until it finds a line separator delimiter. The method returns the String from the current position to the end of the line.

What is nextLine () in Java?

What is the difference between next () and nextLine ()?

next() can read the input only till the space. It can’t read two words separated by space. Also, next() places the cursor in the same line after reading the input. nextLine() reads input including space between the words (that is, it reads till the end of line \n).

How do you read a sentence in Java?

Example of nextLine() method

  1. import java.util.*;
  2. class UserInputDemo1.
  3. {
  4. public static void main(String[] args)
  5. {
  6. Scanner sc= new Scanner(System.in); //System.in is a standard input stream.
  7. System.out.print(“Enter a string: “);
  8. String str= sc.nextLine(); //reads string.

How do you read and write to a text file in Java?

Read/Write text files. Read text file line by line. List files and directories. Copy File or Directory….2. Writer, OutputStreamWriter, FileWriter and BufferedWriter

  1. write(int): writes a single character.
  2. write(char[]): writes an array of characters.
  3. write(String): writes a string.
  4. close(): closes the stream.

How do you read a specific line from a text file in Java?

Java supports several file-reading features. One such utility is reading a specific line in a file. We can do this by simply providing the desired line number; the stream will read the text at that location. The Files class can be used to read the n t h nth nth line of a file.

What is StringReader in Java?

The StringReader class of the java.io package can be used to read data (in characters) from strings. It extends the abstract class Reader . Note: In StringReader , the specified string acts as a source from where characters are read individually.