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iGate Core Java Interview Questions
Questions Answers Views Company eMail

What is the smallest package in Java API?

 5 13190

when to use abstract class and when to use interface?

 16 54285

Q1.A. Write note on “The class path Environment Variable”? B. Which are different kinds of source code? Q2.A. How to create an interface? B. Why convert an applet to an application? Q3.A. How to use Media tracker Class. B. How to use string tokenizer class. Q4 A. Explain the overview of UDP messaging. B. Difference between SQL Exception class and SQL Warning class. Q5. A. How to create com object in Java? B. Write short notes on “The properties class” Q6. A. When object is created and destroyed? B. Explain the JDB in depth & command line. C. Write short notes on Web Sites.

2 7395

Can we inherit the constructor in a Class?please give one example.

 9 16927

why String class is immutable.

 5 12039

why java is better then .net?

 5 7410

What is basic concept of static in java ?

 1 5651

public class Test { public static void main(String ar[]) { Integer a = 10; Integer b =10; Integer c = 145; Integer d = 145; System.out.println(a==b); System.out.println(c==d); } }

7 10840

what is ABSTRACTION and what are using in real time project?

 1 3145

Tell me the programme for this @ 1 2 @ @ @ 1 2 3 4

 5 4508

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iGate Core Java Interview Questions


Un-Answered Questions

What is thin client & thick client in rpa?

1

What is append in excel?

361

What do you mean by documentroot of apache?

498

What is the role of data transfer API in HCatalog?

5

What is cash misappropriation?

616




What is the difference between row store and column store?

282

Is it postgre or postgres?

439

What are the differences between DDL, DML and DCL in SQL?

746

Define copy constructor.

608

What is css wikipedia?

340

Define the networking option in openstack?

36

What is the use of field type?

90

What is a boolean in java?

567

Explain which columns go to the fact table and which columns go the dimension table?

509

You have given 2 array. You need to find whether they will create the same BST or not. For example: Array1:10 5 20 15 30 Array2:10 20 15 30 5 Result: True Array1:10 5 20 15 30 Array2:10 15 20 30 5 Result: False One Approach is Pretty Clear by creating BST O(nlogn) then checking two tree for identical O(N) overall O(nlogn) ..we need there exist O(N) Time & O(1) Space also without extra space .Algorithm ?? DevoCoder guest Posted 3 months ago # #define true 1 #define false 0 int check(int a1[],int a2[],int n1,int n2) { int i; //n1 size of array a1[] and n2 size of a2[] if(n1!=n2) return false; //n1 and n2 must be same for(i=0;ia1[i+1]) && (a2[i]>a2[i+1]) ) ) return false; } return true;//assumed that each array doesn't contain duplicate elements in themshelves }

2694