정답 개수:
0
틀린 개수:
0
실행 실패 개수:
10
1 empty
런타임 에러 (RTE)
stderr:
Exception in thread "main" java.lang.NullPointerException: Cannot invoke "String.length()" because "str" is null at java.base/java.util.StringTokenizer.<init>(StringTokenizer.java:197) at java.base/java.util.StringTokenizer.<init>(StringTokenizer.java:234) at Main.main(Main.java:28)
1
2 push 9 pop
런타임 에러 (RTE)
stderr:
Exception in thread "main" java.lang.NullPointerException: Cannot invoke "String.length()" because "str" is null at java.base/java.util.StringTokenizer.<init>(StringTokenizer.java:197) at java.base/java.util.StringTokenizer.<init>(StringTokenizer.java:234) at Main.main(Main.java:28)
9
2 push 6 top
런타임 에러 (RTE)
stderr:
Exception in thread "main" java.lang.NullPointerException: Cannot invoke "String.length()" because "str" is null at java.base/java.util.StringTokenizer.<init>(StringTokenizer.java:197) at java.base/java.util.StringTokenizer.<init>(StringTokenizer.java:234) at Main.main(Main.java:28)
6