Java Basics #2

Front

What will be output as a result of executing the following code segment?
Line 1: int a = 10;
Line 2: double b = 10.7;
Line 3: double c = a + b;
Line 4: int d = a + c;
Line 5: System.out.println(c + " " + d);

Back

Nothing will be printed because of a compile-time error.

Front

Consider the following code segment:
Line 1: int a = 10;
Line 2: double b = 10.7;
Line 3: int d = a + b;
Line 3 will not compile in the code segment above. With which of the following statements could we replace this line so that it compiles?
I. int d = (int) a + b;
II. int d = (int) (a + b);
III. int d = a + (int) b;

Back

II and III

Front

What is printed as a result of executing the following code segment?
Line 1: int a = 11;
Line 2: int b = 4;
Line 3: double x = 11;
Line 4: double y = 4;
Line 5: System.out.print(a / b);
Line 6: System.out.print(", ");
Line 7: System.out.print(x / y);
Line 8: System.out.print(", ");
Line 9: System.out.print(a / y);

Back

2, 2,75, 2.75

Front

What is printed as a result of executing the following code segment?
int var = 12;
var = var % 7;
var = var - 1;
System.out.println(var);

Back

4

Front

What is printed as a result of executing the following code segment?
int count = 5;
double multiplier = 2.5;
int answer = (int)(count * multiplier);
answer = (answer * count) % 10;
System.out.println(answer);

Back

0

Front

!(a > b || b <= c) is equivalent to which of the following? a > b && b <= c, a <= b || b > c, a <= b && b > c, a < b || b >= c, a < b && b >= c

Back

a <= b && b > c

Front

Which of the following expressions evaluates to true?
x && y && z,
x && y || z && y,
!(x && y) || z,
!(x || y) && z,
x && y || !z

Back

!(x && y) || z