单项选择题

给出下面的程序代码片段，m为下列哪个值时将会输出default ( )
switch (m)
case 0: System. out. println ("case 0");
case 1: System. out. println ("case 1"); break;
case 2: System. out. println ("case 2"); break;
default: System. out. println ("default");