Describe oops concept.What you know about collections.3rd highest salary.find only numbers in alphanumeric string,remove space with in word in string.which is the best way to retrieve using hashmap.how to make immutable class,all methods of object class

Question

anonymous · Accepted Answer

String yodlee = "Founded by venkat Rangan";
yodlee = yodlee.replaceAll(" ","");
System.out.println(yodlee);

anonymous · Answer

Methods of object class -
clone, hashcode, equals, getclass, wait, notify, notifyall, toString, finalize

anonymous · Answer

select ename, mid, salary from(
select ename,mid,salary,ROWNUM from employee order by salary desc) where ROWNUM= 3;

anonymous · Answer

Immutable class:
Constructor - Final
Instance variables - Final
Only getters for Instance Variables

Yodlee

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