Get Length of Array
1)InputStreamReader-The input stream reader is used to read the byte code that is used to encode the byte code into character stream.
2)Buffered Reader - The Buffered reader is used to read a text from a character input Stream reader.
3)readline -The readline is used to read a number printed by System.out.println on the output of a command prompt.
On execution of code the program code show an error, identifier expected for a number, as we do not declare the data type of num. and illegal start of type as we do not place the braces after the main static method.
javaerrormessage.java
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import java.io.*; public class javaerrormessage { public static void main(String args[]) throws Exception InputStreamReader inputStreamReader = new InputStreamReader(System.in); BufferedReader br = new BufferedReader(inputStreamReader); System.out.println("Enter a number : "); String num = br.readLine(); int j = Integer.valueOf(num); for (int i = 0; i < j; i++) { System.out.println(i); } } } |
Output
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Compiling 1 source file to /home/girish/NetBeansProjects/errors/build/classes /home/girish/NetBeansProjects/errors/src/javaerrormessage.java:4: ';' expected public static void main(String args[]) throws Exception /home/girish/NetBeansProjects/errors/src/javaerrormessage.java:9: <identifier> expected System.out.println("Enter a number : "); /home/girish/NetBeansProjects/errors/src/javaerrormessage.java:9: illegal start of type |
To resolve this error you have to give Brace after public static void main(String args[])throws Exception {
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