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class Permutations {
 
    String returnStr(String[] i) {
 
        String finalStr;
 
 
 
    }
 
    boolean prevspace(String k) {
 
        if(k == " ") {
 
            return true;
        }
        else {
            return false;
        }
    }
 
 
 
    public static void main(String[] args) {
 
        String[] combo = ["a", "b", "c", " "];
        String[] iterations = new String(pow(combo[].length, 2));
 
        for(int i=0; i<3; i++) {
 
            if(prevspace(combo[i])) {
 
 
 
 
        }
    }
 
}

Main.java:26: error: illegal start of expression
        String[] combo = ["a", "b", "c", " "];
                         ^
Main.java:26: error: not a statement
        String[] combo = ["a", "b", "c", " "];
                          ^
Main.java:26: error: ';' expected
        String[] combo = ["a", "b", "c", " "];
                             ^
Main.java:27: error: class expected
        String[] iterations = new String(pow(combo[].length, 2));
                                                     ^
Main.java:39: error: reached end of file while parsing
}
 ^
5 errors

Standard output is empty