假设字符串类似这样的aba和aab，abc和bca就相等，现在随便给你二组字符串，请编程比较他们看是否相等...

public static boolean stringSame(String str1,String str2){
if(str1.length() != str2.length()){//先判断长度
return false;
}
StringBuffer strTemp = new StringBuffer();//把str2放到一个StringBuffer
strTemp.append(str2);

for(int i = 0;i < str1.length();i++){//循环字符串1的字符，查看字符串2是否有相同字符，有的话删除
char temp = str1.charAt(i);
int index = strTemp.toString().indexOf(temp);
if(index != -1){
strTemp.deleteCharAt(index);
}else{
return false;
}
}
if(strTemp.toString().length() == 0){//删除结束，确认长度为0则相等
return true;
}

return false;
}

 

//第二种解法
public static equals(String s1,String s2){

if (s1.length() != s2.length()) return false;
if (s1.equals(s2)) return true; 
if (s1 == s2) return true;

char[] ca1 = s1.toCharArray();
char[] ca2 = s2.toCharArray();
Arrays.sort(ca1);
Arrays.sort(ca2);
return Arrays.equals(ca1,ca2);
}

 

转载于:https://www.cnblogs.com/caozengling/p/6873241.html