Discussion Forum : Introduction To Methods And Streams
Question -


What is the output of this program?


import java.io.*;
public class filesinputoutput {
public static void main(String[] args) {
String obj = "abc";
byte b[] = obj.getBytes();
ByteArrayInputStream obj1 = new ByteArrayInputStream(b);
for (int i = 0; i < 2; ++ i) {
int c;
while ((c = obj1.read()) != -1) {
if (i == 0) {
System.out.print(Character.toUpperCase((char)c));
}
}
}
}
}
Options:
A .  abc
B .  ABC
C .  ab
D .  AB
Answer: Option B

None.
Output:
$ javac filesinputoutput.java
$ java filesinputoutput
ABC



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