Tag: technology

Questions Related to technology

An i/p file PRODUCTS contains the records in the following sequence with the fields as SEQ #, PRODUCT NAME, PRODUCT CODE: 0001 LUX 1111 0002 PAMOLIVE 2222 0003 LUX INTERNATIONAL 1111 0004 CINTHOL 3333 Which if the following sort statements would COPY only the LUX products to the o/p file?
technology mainframe

  1. SORT FIELDS = COPY INCLUDE COND = (24,4,CH,EQ,'1111')

  2. SORT FIELDS = COPY OMIT COND = (24,4,CH,NE,'1111')

  3. SORT FIELDS = COPY INCLUDE COND = (6,3,CH,EQ,'LUX')

  4. All of the above

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Correct Option: D

Which is simplest and correct code snippet needs to be put in the main function to replace the value object of the HashMap for the key “orange”?
technology programming languages

  1. itemMap.remove("orange"); itemMap.put("orange", new Item("Orange") );

  2. ((Item)itemMap.get(“orange”)).name = “Orange”;

  3. itemMap.put("orange", new Item("Orange") );

  4. None of above

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Correct Option: B

Which is the most performance efficient implementation for assignCode method from the given options?
technology programming languages

  1. code attribute cannot be changed as Item class doesn’t have setter method for it.

  2. for (int i = 0; i < itemList.size(); i++) { if(itemList.get(i) != null) { ((Item)itemList.get(i)).code = 50+i; } }

  3. int i = 0; Item im = null; while (i < itemList.size()) { im = (Item)itemList.get(i); if(im != null) { im.code = 50+i; } i++; }

  4. int i = 0; Item im = null; Iterator itr = itemList.iterator(); while (itr.hasNext()) { im =(Item) itr.next(); im.code = 50+i; i++; }

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Correct Option: D

Which code from the given options if put in Main class will not print “Done”?
technology programming languages

  1. Function call:- changeName(im); Function implementation :- { im.name = "Done"; return null; }

  2. Function call:- changeName(im); Function implementation :- { im = new Item("Done"); return null; }

  3. Function call :- im = changeName(im); function implementation :- { Item otherObject = new Item("Done"); return otherObject; }

  4. All of the above

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Correct Option: B

Which is simplest code snippet you will add in the main function to set the name attribute of 50th in the ItemList to “Done”?

technology programming languages

  1. im.name = "Done";

  2. Item otherObject = new Item(“Done”); itemList.set(49, otherObject);

  3. ((Item)itemList.get(49)).name = “Done”;

  4. None of above is correct as they are not changing 50th element.

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Correct Option: A

Which of the given options code is correct and will not waste memory. Note :- Defination of the Class Item is class Item { public int code; public String name; public Item(String name) { this.name = name; } } itemList is ArrayList containing 50 objects of Class Items.

technology programming languages

  1. Item im = new Item(null); im = (Item ) itemList.get(0);

  2. Item im = new Item(“Done”); im = (Item ) itemList.get(0);

  3. Item im = null; im = (Item ) itemList.get(0);

  4. All of the above.

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Correct Option: C

How to multiply the VAT factor .12 with the bought product costs (pos 25-30) in the PRODUCT file and copy to the FINAL file? The file length is 215.

technology mainframe

  1. SORT FIELDS=COPY OUTREC FIELDS=(1:1,24,25,6,ZD,MUL,+0.97,TO=ZD,LENGTH=6,31:31,185)

  2. SORT FIELDS=COPY OUTREC FIELDS=(1:1,24,25,6,ZD,MUL,+97,DIV,+100,TO=ZD,LENGTH=6,31:31,185)

  3. SORT FIELDS=COPY OUTREC FIELDS=(1:1,24,25,6,ZD,DIV,+100,MUL,+97,TO=ZD,LENGTH=6,31:31,185)

  4. All of the above

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Correct Option: B,C

How to copy the eliminated duplicate records into another file wherein the SORT happens on the 1st 3 characters of the file?

technology mainframe

  1. SORT FIELDS=(1,3,CH,A) SUM FIELDS=NONE OUTFILE FNAME = F2

  2. SORT FIELDS=(1,3,CH,A) SUM FIELDS=NONE,XSUM

  3. SORT FIELDS=(1,3,CH,A) SUM FIELDS=NONE COPY = F2

  4. None of the above

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Correct Option: B

INREC adds, delectes or reformats fields after the records are sorted or merged.
technology mainframe

  1. True

  2. False

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Correct Option: B

By using _________ statement, data can be sorted in a file between headers and trailers.

technology mainframe

  1. DATASORT

  2. SUBSET

  3. both a and b

  4. None of the above

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Correct Option: A