Here is the list of few Institutes located in Delhi for Java which you are looking for .

Croma Campus
Noida, Delhi
9711277666

Sky Infotech
Noida, Delhi
8882789343

NIIT Ltd.
Delhi G.P.O., Delhi

Acrolect Technologies Private Limited
Gurgaon, Delhi
9891120400

COMPUTEC PROFESSIONALS GROUP
Uttam Nagar, Delhi
9810104810

Tech Vision
Tilak Nagar, Delhi
8506061213

Multisoft Systems
Noida Sector 2, Delhi
9810306956

Tathastu Online Web Services Pvt. Ltd.
Pitampura, Delhi
9990324536

IIHT - Indian Institute of Hardware Technology Ltd.
South Extension Part I, Delhi
7829784374

High Technologies Solutions
Kalkaji, Delhi
9311002620

CVSBR Coordination Services
Lingampally, Delhi
9885152870

Stu Corner
Laxmi Nagar, Delhi
8802245914

Arione Consulting Pvt. Ltd.
Sector 32, Delhi
9136550758

Aptech Computer Education
Preet Vihar, Delhi
9811060629

Appin Technology Lab
Dwarka, Delhi
9212496097

Reliable Technologies
Janakpuri, Delhi
8802473327

Cetpa Infotech Pvt. Ltd.
Sector 2, Delhi
8800340777

Disha Institute of Advanced Studies
Rohini Sector 3, Delhi
9311377710

Dics Computer Education
Pitampura, Delhi
9999368137

Inceptra Technologies
Faridabad, Delhi
9810827355