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Java Compilation Errors

This quiz will help you recognize common compilation errors. Usually, IDEs are powerful enough to capture such errors on the fly. However, it is very important to know them by heart as you may be in a situation using only Javac and you do not want to waste a lot of time

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calculate

Views #: 179

Questions #: 4

Pass Score: 80.0%

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Which method will give a compilation error?

(a)
public boolean isRich(int money) {

   if (money != 0)
     return true;
   else 
      return false;
}

(b)
public boolean isRich(int money) {

   if (money != 0)
     return true;

}

(a) will give an error

(b) will give an error

both will give errors

non of them will give error

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POINTS (1)

Correct Answer

Explanation

What is the error message that the compiler will show if a semi-colon is missing?

System.out.println("Line has " + num + " chars.")

: ';' is missing

: ';' expected

: ';' needed

: ';' semi-colon expected

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POINTS (1)

Correct Answer

Explanation

Does Javac compiler generate .class file even if there is a compile error?

No

Yes

Sometimes

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POINTS (1)

Correct Answer

Explanation

What are the number of compilers Java had before Java 8?

1

2

3

4

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POINTS (1)

Correct Answer

Explanation

0

sin cos tan Deg Rad

sin^-1 cos^-1 tan^-1 π e

x^y x³ x² e^x 10^x

^y√x ³√x √x ln log

( ) 1/x % n!

7 8 9 + MS

4 5 6 – M+

1 2 3 × M-

0 . EXP ÷ MR

± RND C = MC

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