This is a details tutorial about java programming. At least, any java programmer needs those skills to develop an application in java platform. However, I didn’t write this tutorial. I’d like to sh...
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1. When importing importing another another packag package e into a class you must import import only only the package package classes that will be called and not the entire package. True True or false? False (*) . Which of the the following following de!nes de!nes a dri"er dri"er class? class? #ontains #ontains a main method method and other other static methods. (*) $. The following following de!nes de!nes a class class keyword keyword%% &recedes &recedes the name of the class. class. (*) '. When importing importing another another packa package ge into a class class you must must import import the entire entire package as well as the package classes that will be called. True or False? False (*) . clipse clipse does not pro"ide pro"ide "iews "iews to help you na"igate na"igate a hierarchy hierarchy of information. information. True True or False? False? False False (*) . +n a pro,ect- 1 of of the classes must contain a main method. method. True True or False? False? True True (*) . The //////// //////////// ////// // is the location location into which which you will will store and sa"e sa"e your !les. Workspace (*) 0. i"e i"en n the the code code 2tring s1 3 4abcdef45 2tring s 3 4abcdef45 2tring s$ 3 new 2tring(s1)5 Which of the following would e6uate to false? s$ 33 s1 (*) 7. The following following prog program ram prints 46ual4. 46ual4. True True or false?
True True (*) 18.#onsider the following code snippet. What is printed?
00 (*) 11.#onsider the following% 9ou 9ou are writing a class and are using a global global "ariable. +nside +nside a method you declare a local "ariable with the same name as the global "ariable. This programming style is is poor because inside the method method the global "ariable "ariable will ha"e precedence o"er the local "ariable with the same name. True True or false? False False (*) 1.What does the following program program output?
total cost% '8 (*) 1$.What two "alues can a boolean "ariable ha"e? True True and false (*) 1'.Which of the following is the name of a :a"a primiti"e data type? double (*) 1.What is the th e output of the following lines of code? int ,3-k3-m30-result5 result3,;k<$*m5 2ystem.out.println(result)5 ;7 (*) 1.The following program prints 46ual4. True or false?
False (*)
1.The following code is an e=ample of instantiating a 2tring ob,ect% 2tring str 3 2tring( 4>ello4 )5 True or false? False (*) 10.What will the following code segment output?
44@brA 4 (*) 17.For e"ery opening curly brace B there must be a closing curly braceC or the program will not compile without error. True or False? True (*) 8.D workspace can not ha"e more than one stored pro,ects. True or false? False (*) 1.Which of the following is not correct :a"a code? double =3Eath.pow5 (*) .Which of the following is not a legal name for a "ariable? 'geeks (*) $.What are :a"as primiti"e types? boolean- byte- char- double- Goat- int- long- and short (*) '.Which of the following statements correctly assigns 4$ times 18 to the 'th power4 to the "ariable number? double number3$e'5 (*) .The following de!nes a package keyword% He!nes where this class li"es relati"e to other classes- and pro"ides a le"el of access control. (*) .The following de!nes an import keyword% &ro"ides the compiler information that identi!es outside classes used within the current class. (*) .Which line of code does not assign $. to the "ariable =? $.3=5 (*) 0.Which line of :a"a code assigns the "alue of raised to the power of 0 to a? double a3Eath.pow(-0)5 (*) 7.What is the output of the following lines of code? int ,3-k3-m30-result5 result3,Im*k5 2ystem.out.println(result)5 8 (*) $8.#onsider the following code snippet.
What is printed? 1 (*) $1.Which of the following instantiates a 2tring named name to Jracle? 2tring name34Jracle45 (*) $.9ou can return to the clipse Welcome &age by choosing Welcome from what menu? >elp (*) $$.2emi;colons at the end of each line are not re6uired to compile successfully. True or False? False (*) $'.D perspecti"e is described as% A combination of views and editors (*) $.Which line of :a"a code will assign the "alue of the s6uare root of 11 to a "ariable named a? double a3Eath.s6rt(11)5 (*) $.Which of the following is not a legal name for a "ariable? bad (*) $.D /////////////// is used to organiKe :a"a related !les. &ackage (*) $0.Tabs are used when more than one !le is open in the edit area. True or False? True (*) $7.i"en the code% 2tring s 3 new 2tring(4abc4)5 Which of the following statements will change the length of s to the largest length? Lone of the abo"e will change the length of s. (*) '8.The 33 operator tests if two 2tring references are pointing to the same 2tring ob,ect. True or false? True (*) '1. When importing another package into a class you must import the entire package as well as the package classes that will be called. True or False? False (*)
'. The following code is an e=ample of a correct initialiKation statement% char c34c45False (*)
