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String split 사용할때 빈값 삭제 / 유지 예제 코드

        String test1 = "abc|aa|bb|cc||";

        String[] strArray = test1.split("\\|");
        System.out.println("1. test1 length :" + strArray.length);

        for (String str : strArray) {
            System.out.println("1. test1 : " + str);
        }

        System.out.println("");

        strArray = test1.split("\\|", -1);
        System.out.println("2. test1 length :" + strArray.length);

        for (String str : strArray) {
            System.out.println("2. test1 : " + str);
        }

실행 결과

1. test1 length :4
1. test1 : abc
1. test1 : aa
1. test1 : bb
1. test1 : cc

2. test1 length :6
2. test1 : abc
2. test1 : aa
2. test1 : bb
2. test1 : cc
2. test1 : 
2. test1 :

https://docs.oracle.com/javase/8/docs/api/java/lang/String.html#split-java.lang.String-int-