Interview Questions and Answers for 'Minted llc' - 3 question(s) found - Order By Rating Usually asked to entry level software developers. Q1. Write a program to swap two variables without using third Core Java
Ans. public static void main(String[] args) {
int num1 = 1;
int num2 = 2;
num1 = num1^num2;
num2 = num1^num2;
num1 = num1^num2;
System.out.print("num1 = " + num1 +", num2 = "+num2);
} Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve  code  coding Asked in 37 Companies basic   frequent Related Questions What are the steps to be performed while coding Junit with Mocking framework ? What is a Sequence File? What different level of logging you use while coding ? Have you ever encoded the response before sending it back from the service? If Yes , Which encoding was used ? What are the different type of encoding you have used ? How does encoding affect using Reader / writer classes or Stream classes in Java ? What is the difference between html encoding and url encoding ? Does spaces get's encoded in html encoding ? Frequently asked in Accenture. Q2. What is your biggest achievement at work ? General
Ans. [Open Ended Answer] Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve  general question  non technical question Asked in 20 Companies   frequent Related Questions Describe, in general, how java's garbage collector works ? What is a ConcurrentHashMap ? What is Generalization and Specialization in terms of casting ? Which java frameworks have you used ? What the Bean scopes provided by Spring ? What are the various Auto Wiring types in Spring ? When should we use prototype scope and singleton scope for beans ? When do we generally get this database error - integrity constraint violated - parent key not found ? Write a program for Coin Changer application ? When do we generally get the database error - Unique Constraint Violated ? Q3. Write a method to check if input String is Palindrome? Core Java
Ans. private static boolean isPalindrome(String str) {
if (str == null)
return false;
StringBuilder strBuilder = new StringBuilder(str);
strBuilder.reverse();
return strBuilder.toString().equals(str);
} Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve  java   string   stringbuilder   stringbuilder   string class   code   palindrome Asked in 38 Companies Basic   frequent Related Questions Which keyword is used to provide explicit access of a code block to single thread ?
a. Transient
b. Final
c. Explicit
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1. new OuterClass().new InnerClass();
2. new OuterClass.InnerClass(); Which String class does not override the equals() and hashCode() methods, inheriting them directly from class Object? If arrays cannot be resized , Why is this code valid
String[] strArray = new String[2];
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