how read() method is executing twice

Question

But i dont understand why its a? why read() method is executing twice?

 import java.io.*;
  public class asrts{
    public static void main(String argv[])throws Exception{
      StringReader sr=new StringReader("Kavp");
      sr.read();
      char c=(char)sr.read();
      System.out.println(c);
    }
  }

Output is "a"

please help

result of first call is "K", but you are not using this result; second call gives "a" — nikis, Mar 18 '14 at 19:53
What are you trying to accomplish? What is your desired output? — Cody S, Mar 18 '14 at 19:54

score 2 · Answer 1 · answered Mar 18 '14 at 19:53

2

  sr.read();                  <--- call #1, returns "K" and loses it
  char c=(char)sr.read();
               ^^^^^^^^^--- call #2, returns "a"

answered Mar 18 '14 at 19:53

Marc B

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score 1 · Answer 2 · answered Mar 18 '14 at 20:25

1

why read() method is executing twice?

Because you called it twice.

answered Mar 18 '14 at 20:25

user207421

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how read() method is executing twice

2 Answers2