Answer / murli

if (x1,y1) and (x2,y2) are two points..then line made is horizontal if (y1==y2).vertical if(x1==x2).Two points can never form a rectangle.

Why are arrays useful in java?

1 Answers  

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In the first round, there are 30 aptitude and 30 java questions. We are suppose to finish both the papers within 60 minutes. I cleared this round. Next was test for programming skills. In this section, Some 7 n's were asked. 1. What is the difference b/w sleep(1000) and wait(1000) 2. what is the diff b/w static block and static function? 3. Write a program to validate IP address using string tokenizer. 4. Write a program to create singleton class 5. write a function to reverse the string 6. Write a prog to print prime nos upto n. EX: If n=9, It shld print 1,2,3,5,7 7. One program on collections- Write a program to print no. of times a number is repeating in an array. EX- {1,3,1,2,5,7,3,7,34,3,8,3} It should print: 1- 2 times 3- 4 times and so on 7. Write a func to print fibonocci series After this I had technical interview, which went on for. 60 mins or so. There were qn's about multi threading, Exception handling and collection classes. Knowledge about collections was very important for the post I was interviewed for.

1 Answers   Huawei,

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Compare overloading and overriding?

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What is JDK? Mention the variants of JDK?

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what is collatration?

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Is there a jre for java 11?

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How many types of parsers are there?

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What is the use of an interface?

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In how many ways we can do exception handling in java?

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What do you meant by active and passive objects?

1 Answers   Wipro,

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when everything can be done by static block then why do we use main method?.

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What is the difference between hashset and treeset in java?

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