What is the result?
A.
p1.Test.class
0.0
B
<the summary address refrenced by ref>
0.000000
C.
Null
0.0
D. Compilation fails
E. A NullPointerException is thrown at runtime
What is the result?
A.
100
210
B. Compilation fails due to an error in line n1
C. Compilation fails due to an error at line n2
D. Compilation fails due to an error at line n3
Which code fragment, when inserted at line n1, enables the App class to print Equal?
A.
String str3 = str2;
if (str1 == str3)
B.
if (str1.equalsIgnoreCase(str2))
C.
String str3 = str2;
if (str1.equal...
Which three are advantages of the Java exception mechanism?
A. Improves the program structure because the error handling code is separated from the normal program function
B. Provides a set of standa...
A method is declared to take three arguments. A program calls this method and passes only two arguments. What is the results?
A. Compilation fails.
B. The third argument is given the value null.
C. T...
What is the output?
A.
planets
Earth
1
B.
[LPlanets.Planet;@15db9742
Earth
1
C.
[LPlanets.Planet;@15db9742
Planets.Planet@6d06d69c
1
D.
[LPlanets.Planet;@15db9742
Planets.Planet@6d06d69c
[LPlanets.Mo...