If/Else

Front

Analyze the following code:
boolean even = false;
if (even = true) {
 System.out.println("It is even!");
}

Back

The program runs and displays It is even!.

Front

Suppose income is 4001, what is the output of the following code:
if (income > 3000) {
 System.out.println("Income is greater than 3000");
}
else if (income > 4000) {
 System.out.println("Income is greater than 4000");
}

Back

Income is greater than 3000 

Front

Suppose you write the code to display "Cannot get a driver's license" if age is less than 16 and
"Can get a driver's license" if age is greater than or equal to 16.
Which of the following code is the best? Options: if (age < 16)
System.out.println("Cannot get a driver's license");
if (age >= 16)
System.out.println("Can get a driver's license");, if (age < 16)
System.out.println("Cannot get a driver's license");
else
System.out.println("Can get a driver's license");, if (age < 16)
System.out.println("Cannot get a driver's license");
else if (age >= 16)
System.out.println("Can get a driver's license");, if (age < 16)
System.out.println("Cannot get a driver's license");
else if (age > 16)
System.out.println("Can get a driver's license");
else if (age == 16)
System.out.println("Can get a driver's license");

Back

if (age < 16)
System.out.println("Cannot get a driver's license");
else
System.out.println("Can get a driver's license");

Front

The following code displays ___________.
double temperature = 50;
if (temperature >= 100)
 System.out.println("too hot");
else if (temperature <= 40)
 System.out.println("too cold");
else
 System.out.println("just right");

Back

just right

Front

Assume x = 4 and y = 5, Which of the following is true? Options: x < 5 && y < 5,  x < 5 || y < 5,  x > 5 && y > 5, x > 5 || y > 5

Back

x < 5 || y < 5

Front

What is the output of the following code?
char ch ='F';
if (ch >='A' && ch <='Z')
System.out.println(ch);

Back

F

Front

Analyze the following program fragment:
int x;
double d = 1.5;
switch (d) {
 case 1.0: x = 1;
 case 1.5: x = 2;
 case 2.0: x = 3;
}

Back

The switch control variable cannot be double.

Front

What will be displayed by the following switch statement?
 char ch = 'a';
 
 switch (ch) {
 case 'a':
 case 'A':
 System.out.print(ch); break;
 case 'b':
 case 'B':
 System.out.print(ch); break;
 case 'c':
 case 'C':
 System.out.print(ch); break;
 case 'd':
 case 'D':
 System.out.print(ch);
 }
Options: abcd, a, aa, abc

Back

a

Front

The order of the precedence (from high to low) of the operators binary +, *, &&, || is:

Back

*, +, &&, ||

Front

What is the value of the following expression?
true || true && false
order of operation is && first and then ||

Back

true