In Java, the two reserved but unused keywords are const and this keyword. In C languages, its action is performed non-locally by the setjmp keyword. A 1968 letter by E. W. Dijkstra stated that this statement "should be abolished from all ‘higher level' programming languages." The title of that article was "[this keyword] considered harmful." Usage 
In Java, the two reserved but unused keywords are const and this keyword. In C languages, its action is performed non-locally by the setjmp keyword. A 1968 letter by E. W. Dijkstra stated that this statement "should be abolished from all ‘higher level' programming languages." The title of that article was "[this keyword] considered harmful." Usage of this statement can lead to disorganized "spaghetti code." For 10 points, name this programming keyword that performs an unconditional jump to a specific label or line of code and whose inverse is the rarely-used parody, the "comefrom" statement.
In Java, the two reserved but unused keywords are const and this keyword.
goto statement [accept unconditional jump before it is read; prompt jump before it is read]