Question 10.05 pts What will the value of x be after the following statements ar

Question

Question 10.05 pts

What will the value of x be after the following statements are executed?

double a, b, c, x;
a = 5;
b = 3;
c = 6;
if ( a <= c ){

x = 1;

} else if ( c > b ) {

x = 2;

} else {

x = 3;

}

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Question 20.05 pts

What will the value of x be after the following statements are executed?

double a, b, c, x;
a = 5;
b = 3;
c = 6;
if ( a <= c ) {

x = 1;

}

if ( c > b ) {

x = 2;

}

if ( x > b ) {

x = 3;

}

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Question 30.05 pts

Which of the following is NOT a Java relational operator?

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Question 40.05 pts

Which of the following is true?

When using == to compare reference variables, you are testing for "identity equality" -- that the two variables refer to the same object.

The .equals() method tests for "content equality" -- that the objects are considered equivalent to each other.

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Question 50.05 pts

What symbols does Java use to create block statements (a 'block' of code)?

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Question 60.05 pts

Which of the following operators may NOT be used with operands of type boolean?

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Question 70.05 pts

What is a common use for a variable of type boolean?

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Question 80.05 pts

What is a common name for a method that returns type boolean?

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Question 90.05 pts

Which of the following data types is NOT valid for the switch expression in a switch instruction?

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Question 100.05 pts

If a break statement is not included at the end of each action (alternative) in a switch instruction, what is the result?

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Question 110.05 pts

The switch instruction is a more general-purpose (more versatile) tool than the if instruction.

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Question 120.05 pts

You are writing a program that will allow a user to enter a single word identifying her 'sign' in the Chinese zodiac (e.g. "Dog") and then show some information about that sign. Obviously a decision must be made in this program. Which selection structure(s) could you use?

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Question 130.05 pts

What numerical value for x will cause the following expression to evaluate to true.

x > 5 || x < 9

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Question 140.05 pts

Which of the following is a legal Java expression?

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Question 150.05 pts

Which of the following operators has the highest precedence?

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Question 160.05 pts

Which of the following is true in Java?

I. Every else must have a preceding if.
II. Every if must have a following else.

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Question 170.05 pts

What kind of loop is a data validation loop?

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Question 180.05 pts

Which loop control structure can NOT be used if there are conditions under which the body of the loop should be executed zero times?

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Question 190.05 pts

You know that a for loop is usually the best choice for a counting loop, but which other loop control structure(s) could possibly be used to create a counting loop?

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Question 200.05 pts

Consider the following class definition:

public class Woog{

public static void main (String[] a){

Fiddle f = new Fiddle();

...

}

}

How would you describe the relationship between Fiddle and Woog?

Explanation / Answer

As per the chegg guidelines answered first 4 questions

10. answer: 1

Explanation:

a=5,b=3,c=6

if(a<=c) condition satisfied so following block of code will execute

s0 x=1 will be set

so x vales will be 1

20.answer: 2

Explanation:

if(a<=c) condition failed because (5<=6) failed

if(c>b) i.e (6>3) satisfied so x=2 will be set

30.answer: =

Explanation:

Java has six relational operators that compare two numbers and return a boolean value. The relational operators are <, >, <=, >=, ==, and !=.

40.answer: I and II both are true

Explanation:

We can use == operators for reference comparison and .equals() method for content comparison. In simple words, == checks if both objects point to the same memory location whereas .equals() evaluates to the comparison of values in the objects.

50.answer: { }

Explanation: block of code will be written in { and }

60.answer:

90.answer: double

Explanation: A switch works with the byte, short, char, and int primitive data types ,Floating point numbers are not a good candiates for switch

100.Answer: more than one action may execute

110.Answer:True

120.Answer:a switch statement should be used

130.x=7

140.2 <= n && n < 5

150.%

160.I

190.a while loop

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