Create the below given java classes.
Class Name :exceptionTest.java
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
public class exceptionTest{
public static void main(String arg[]) throws MainException, NumberFormatException, IOException{
//This is a example for user defined exception
System.out.print("Please enter Employee Number form 1 to 10 : ");
InputStreamReader istream = new InputStreamReader(System.in) ;
BufferedReader bufRead = new BufferedReader(istream) ;
int userEntry = Integer.parseInt(bufRead.readLine());
if(userEntry > 10){
throw new EmpNotFoundException("Please Enter a value from 1 to 10");
}else{
System.out.println("You have entered the value: "+ userEntry);
}
}
}
Class Name : MainException.java
public class MainException extends Exception {
private static final long serialVersionUID = -6452702088031438499L;
private String errorKey;
public void setErrorKey(String errorKey) {
this.errorKey = errorKey;
}
public String getErrorKey() {
return errorKey;
}
public MainException() {
super();
}
public MainException(String errorKey, Throwable cause) {
super(errorKey,cause);
this.errorKey = errorKey;
}
public MainException(String errorKey) {
super(errorKey);
this.errorKey = errorKey;
}
}
Class Name : EmpNotFoundException.java
public class EmpNotFoundException extends MainException {
private static final long serialVersionUID = 1L;
private String errorKey;
public void setErrorKey(String errorKey) {
this.errorKey = errorKey;
}
public String getErrorKey() {
return errorKey;
}
public EmpNotFoundException(String errorKey, Throwable cause) {
super(errorKey, cause);
}
public EmpNotFoundException(String errorKey) {
super(errorKey);
}
}
Now run the exceptionTest.java. If you enter a value greater than 10, then user defined exception will be triggered and the message appears in the console.
Try it !!!
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