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;}}
