CSE 205 midterm ACTUAL UPDATED Exam Questions and CORRECT Answers

CSE 205 midterm ACTUAL UPDATED
Exam Questions and CORRECT Answers
primitive data types - CORRECT ANSWER - byte, short, int, long, float, double, char,
boolean


non primitive data types - CORRECT ANSWER - Array
String


Which would correctly declare and instantiate an array of 5 ints? - CORRECT ANSWER -
int[] values = new in[5];


2D arrays the first term goes __ and the second is __ - CORRECT ANSWER - down,
across


every java program consists of at least one - CORRECT ANSWER - class definition



Method overloading distinguishes between methods based on __ - CORRECT ANSWER -
signature/paramater


What structure is commonly used to iterate over all the elements of a two dimensional array? -
CORRECT ANSWER - nested loop


Foo x = new Foo(51), y = new Foo(73);
y.i = x.i;
y.i = 12;

System.out.println(x.i); - CORRECT ANSWER - 73

, immediately after the objects variables are initialized - CORRECT ANSWER - a
constructor is called


a value type variable stores a - CORRECT ANSWER - value


t or f
a name defined in an outer scope is not available in all blocks nested inside that scope -
CORRECT ANSWER - false



the purpose of a constructor is to - CORRECT ANSWER - initialize an object to a valid
state


Foo x = new Foo(86), y = new Foo(69);
y = x;
y.i = 7;

System.out.println(x.i); - CORRECT ANSWER - 7


Foo x = new Foo(18), y = new Foo(75);
x = y;
y.i = 23;

System.out.println(x.i); - CORRECT ANSWER - 23



an object and the variable that refers to it are two different things - CORRECT ANSWER -
true


a default constructor takes __ arguments - CORRECT ANSWER - 0



an object is an instance of a class - CORRECT ANSWER - true