Strings and String Input

Objectives

1. Discuss strings.

Notes

• A string is a collection of characters, stored in order.
  • The type is String
  • String word = "hello";
  • System.out.printf("%s is the string\n", word);
• String input
  • scanner .next() method
    • Skips white space
    • Reads whatever there is until the next whitespace.
  • scanner .nextLine()
    • reads from the current position to the next newline,
    • And consumes the newline.
  • You might need to "clear" the rest of the line with another .nextLine()
• The Code

  import java.util.Scanner;
  
  public class StringDemo {
      public static void main(String[] args) {
          String  word = "hello";
          System.out.printf("%s is the word\n",word);
  
          String phrase;
  
          Scanner myScanner = new Scanner(System.in);
  
          System.out.print("Enter a word = >");
          phrase = myScanner.next();
          System.out.printf("The scanner got '%s'\n",phrase);
  
          // skip the newline
          // myScanner.nextLine();
  
          System.out.print("Enter a phrase = >");
          phrase = myScanner.nextLine();
          System.out.printf("The scanner got '%s'\n",phrase);
  
          System.out.print("Enter a word = >");
          phrase = myScanner.next();
          System.out.printf("The scanner got '%s'\n",phrase);
  
      }
  }