Have you ever implemented a method and wanted to return the value of a variable and then clear (or change) the variable? Since you can't typically execute another line of code after your "return" statement, most people use a temporary variable to accomplish this:
private String var;
public String getAndClear () {
String temp = var;
var = null;
return temp;
}
However, you can also accomplish the same thing without using the local temp variable:
private String var;
public String getAndClear () {
try {return var;} finally {var = null;}
}
