java - How to store comma separated argument using scanner -
    i taking user input using scanner , want store 2 argument given command line how ever able one. believe hasnextint() returns boolean value if there nextint, when enter non-int value doesnot break loop.   i have checked sources online , on stackoverflow before posting questions did not looking for.   scanner s = new scanner(system.in);  int first = 0; int second = 0; system.out.println("please enter number: "); s.usedelimiter(","); while (s.hasnextint()) {     first = s.nextint();     system.out.print("firstargument: " + first + "\n");     second = s.nextint();     system.out.print("secondargument: " + second + "\n"); }          the problem code calls s.hasnextint()  every odd-numbered input, tries take each even-numbered input without performing check. therefore, requires inputs this:   1,2,3,4,5,6,done 1,2,3,4,done 1,2,done   however, inputs result in exception:   1,2,3,4,5,done 1,2,3,done 1,done   note non-numeric input ...