Edit Distance II
Given two strings S and T, determine if they are both one edit distance apart.
Given s = "aDb", t = "adb"
return true
public class Solution {
/**
* @param s a string
* @param t a string
* @return true if they are both one edit distance apart or false
*/
public boolean isOneEditDistance(String s, String t) {
// Write your code here
if(s==null||t==null) return true;
if(s!=null&&t==null||s==null&&t!=null) return false;
int sLen = s.length();
int tLen = t.length();
if(Math.abs(sLen-tLen)>=2) return false;
for(int i=0; i<Math.min(sLen, tLen);i++){
if(s.charAt(i) != t.charAt(i)){
if(sLen==tLen ){
return s.substring(i+1, sLen).equals(t.substring(i+1, tLen));
} else if (sLen< tLen ){
return s.substring(i, sLen).equals(t.substring(i+1, tLen));
} else if (sLen> tLen ){
return s.substring(i+1, sLen).equals(t.substring(i, tLen));
}
}
}
if(sLen==tLen){
return false;
}else{
return true;
}
}
}
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