Java solution with two HashMap

  • 0
    public class Solution {
        public boolean isIsomorphic(String s, String t) {
        	Map<String,String> map = new HashMap<String,String>();
        	Map<String,String> temp = new HashMap<String,String>();
        	String[] s1 = s.split("");
        	String[] t1 = t.split("");
        	for(int i=0;i<s1.length;i++){
        			map.put(s1[i], t1[i]);
        			temp.put(t1[i], s1[i]);
        		}else if(map.containsKey(s1[i])){
        			if(!map.get(s1[i]).equals(t1[i]))return false;
        		}else if(map.containsValue(t1[i])){
        			if(!temp.get(t1[i]).equals(s1[i]))return false;
        	return true;

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