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class NumException extends Exception {
private static final long serialVersionUID = 1L;
public NumException(final double valeur, final String s) {
super(s + " valeur : " + valeur);
}
}
class NullException extends NumException {
private static final long serialVersionUID = 1L;
public NullException() {
super(0,"Valeur nulle non attendue");
}
}
public class TestExceptInHerit{
/**
* Methode verifiant qu'une valeur est positive.
* @param val valeur a tester
* @return valeur d'entree
* @throws NumException si valeur negative
* @throws NullException si valeur egale a zero.
*/
private static double positifOuNull(final double val)
throws NumException, NullException {
if (val < 0.0) {
throw new NumException(val, "PositifOuNull valeur positive attendue.");
}
if(val == 0.0) {
throw new NullException();
}
return val;
}
/**
* traitement partiel d'exception les exceptions
* NullException sont traitees, les exceptions NumException
* sont traitees partiellement et relayees.
* @param val valeur a tester
* @throws NumException
*/
private static void testPositifOuNull(final double val)
throws NumException {
double d=0;
System.out.println("Dans testPositifOuNull val = "+val);
try {
d = positifOuNull(val);
System.out.println("Pas d'exception le code continue en sequence");
} catch (NullException m) {
System.out.println("Catch NullException dans testPositifOuNull " + m);
throw m;
} catch (NumException m) {
System.out.println("Catch NumException dans testPositifOuNull "
+ "traitement partiel et relais" + m);
throw m;
}
finally {
System.out.println("Dans le finally de testPositifOuNull " + d);
}
}
public static void main(final String [] args) {
int j = 0;
for (String oneArg : args){
try {
j = Integer.parseInt(oneArg);
testPositifOuNull(j);
} catch (NumberFormatException nfe){
System.out.println("Parameter " + oneArg
+ " should be an integer");
} catch(NumException n){
System.out.println("Catch dans le main " + n);
}
}
}
}
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