Java Chapter 5 Test Questions and Answers| Latest Update 100% Solved

Java Chapter 5 Test Questions and Answers| Latest
Update 100% Solved

1) In the following code, Integer.parseInt(str), is an example of:
int num;
string str = "555";
num = Integer.parseInt(str) + 5;
A) a value-returning method
B) a void method
C) a local variable

D) a complex method ✔️✔️Answer: A


2) Which of the following is NOT a part of the method header?
A) return type
B) method name
C) parentheses

D) semicolon ✔️✔️Answer: D


3) Which of the following is included in a method call?
A) return type
B) method modifiers
C) parentheses

D) return variable ✔️✔️Answer: C


4) You should always document a method by writing comments that appear:
A) just before the method's definition
B) just after the method's definition

, C) at the end of the file

D) only if the method is more than five lines long ✔️✔️Answer: A


5) When an argument value is passed to a method, the receiving parameter variable is:
A) declared within the body of the method
B) declared in the method header inside the parentheses
C) declared in the calling method

D) uses the declaration of the argument ✔️✔️Answer: B


6) If you attempt to use a local variable before it has been given a value:
A) a compiler error will occur
B) the local variable will always contain the value 0
C) the results will be unpredictable

D) the local variable will be ignored ✔️✔️Answer: A


7) What will be the result of the following code?
int num;
string str = "555";
num = Integer.parseInt(string str) + 5;
A) num will be set to 560.
B) str will have a value of "560".
C) The last line of code will cause an error.

D) Neither num or str will be changed. ✔️✔️Answer: C


8) Given the following method header, which of the method calls would be an error?
public void displayValues(double x, int y)
A) displayValue(a,b); // where a is a long and b is a byte