Check If Two String Arrays are Equivalent
给两个数组, 里面是字符串, 问是不是能concatenate后组成相同的字符串.
class Solution {
public boolean arrayStringsAreEqual(String[] word1, String[] word2) {
StringBuilder sb1 = new StringBuilder();
StringBuilder sb2 = new StringBuilder();
for(String w : word1) {
sb1.append(w);
}
for(String w : word2) {
sb2.append(w);
}
return sb1.compareTo(sb2) == 0;
}
}