Java J2EE Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

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JDBC (771)
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Java J2EE Interview Questions

Questions Answers Views Company eMail

what happen if we set JDBC string to NULL?

Sapient,

1 3476

why java uses class level type casting ?

1 2712

how a programmer confirms that the data submitted has been succesfully inserted into the database(either oracle or my sql).. How a programmer confirm if there is any problem with the program he wrote for insertion... ANS:--- >executeupdate method is having boolean return type, if anything goes wrong in data insertion or data updation, it would return false. otherwise, if it successfully inserts data into the database, it would return true NOW HOW TO I CHECK IN MY DURING EXECUTION WHETHER IT RETURNS TRUE OR FALSE... WELL IT WILL DISPLAY ANY MESSAGE OR NOT

Google,

1 2501

where can we get jAVA project orientation traing in HYDERABD

2087

java program with complete 4 oops concepts implemented example

Infosys, NIIT,

1 3245

servlet life cycle?

eMids, Wipro,

4 8301

any one can explain about policy file rule? when i connect database with applet then ther is no compile time error but the run time error is occureed.i.e access is denied.policy file rule is related to this problem.

1 2385

what is platform independence in java?

CSC, HSBC,

5 8995

if num=687; U have to get num=6+8+7;

CMC,

4 6433

there are some duplicate values in ArrayList, how U'll get that array with out duplicate?

CMC,

4 9531

in a console we r giving java if r pressing enter where it'll goes

CSC,

2 5089

Can we extend the String class?

Truworth,

3 25606

we r taking 0 1 in deployment descripter for loading servlets like serv1 N serv2? so 'll it take serv1 or serv2

CSC,

2 7654

what are the different non-access specifiers in java?

5 12330

why we don't use the type 2 driver for connect to the database in jdbc?

TCS,

1 5173

Un-Answered Questions { Java J2EE }

Write a program to find the whether a number is an Armstrong number or not?

1095

Write a java program to find the route that connects between Red and Green Cells. General Rules for traversal 1. You can traverse from one cell to another vertically, horizontally or diagonally. 2. You cannot traverse through Black cells. 3. There should be only one Red and Green cell and at least one of each should be present. Otherwise the array is invalid. 4. You cannot revisit a cell that you have already traversed. 5. The maze need not be in the same as given in the above example

2657

Write a program to print count of empty strings in java 8?

1077

Differentiate between static and non-static methods in java.

1115

What is parsing in java?

1024

explain different ways of using thread? : Java thread

1076

what are the different modes of archival? Explain each mode in two lines each?

993

hi actully i hav form columns with origin and destination names .as like as i need to create one more column with name amount. my requirement is when i select origin and destination columns automatically i need to get amount from database.how can i. please tel me with relative code

2859

What is an object in java and how is it created?

1120

What is the difference between equals() and == in java?

1032

Is minecraft 1.15 out?

1034

Explain public static void main(string args[]) in java.

1062

Find Best Job Vacancies across the world on Jooble!

126

How to create a base64 decoder in java8?

1128

Can we return resultset in java?

985

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