using objects
What is returned by this method call: translator("pokemon")? public String translator(String word) { return word.substring(1) + word.charAt(0) + "ay"; }
"okemonpay"
What will the value of myBankAccount be after the method call depositMoney(myBankAccount, 572);? int myBankAccount = 122; public void depositMoney(int bankAccount, int deposit) { bankAccount += deposit; }
122
What does this method call doubleNumber(7.8); return, given the following method? public double doubleNumber(double myNumber) { return (double) (int) myNumber * 2; }
14.0
What will the method call formatText(2018, 17, "Dec") print to the screen? public static void formatText(int a, int b, String c) { System.out.println(b + " " + c + ", " + a); }
17 Dec, 2018
Why do we use methods in Java? I. To make code easier to understand II. To define global variables III. To avoid repeated code IV. To simplify code V. To avoid needing to define them as public or private
I, III, and IV
What is true of a void method?
It returns no value.
How do you square the minimum value between two values, such as x and y?
Math.pow(Math.min(x, y), 2);
What is wrong with this method definition? public int printPayAmount(int amount) { System.out.println(amount); }
Nothing is returned from this method
What are parameters?
The formal names given to the data that gets passed into a method.
What does the method call tripleString("APCSA"); return for the following method? public String tripleString(String x) { return x * 3; }
This method is improperly written.
The value that a non-void method outputs is called
a return value
what does str="i am"; str+=10+3; return?
iam13
A procedure that is defined by the user is called a
method
If an instance variable is called, but has not been set to a value yet, what returns?
null
Which of the following produces a random number between 1-100?
return (int)(Math.random()*100+1)
Can wrapper classes be used in primitive methods?
yes
