Question

In Java

As in previous labs, you can enter all the necessary Java code fragments into the DrJava Interactions pane.

This will introduce you to reading input from a file and writing data to a file. As a warmup, we are going to read input from a String. Look up the StringReader class in the API. Create a StringReader object using the string "EECS 132". Then, use the read method to read each character, one at a time, from the string. Finally, state how you can tell when the last character of the String is read. You may give an English description or you can enter Java code that does the test.

Answer 1

code:

import java.io.StringReader;

class Main {

public static void main(String[] args) throws Exception {

String str = "EECS 132";

StringReader reader = new StringReader(str);

int k=0;

//read each character untill we encounter -1

//read method return integer value of next character and it will return -1 if no character has been read.

System.out.println();

while((k=reader.read())!=-1){

//casting integer to character and print

System.out.print((char)k);

}

}

}