Java Level 1 - B

The Java term "float" represent what data type?

• floating point number

• Boolean

• floating fraction

• character

The Java term "char" represent which of the following description?

• Whole number between -128 to 127

• True or False value

• single character/letter or ASCII value

• characters used for subtraction equations

The "short" Java term is used for what set of stored number values?

• -32,768 to 32,767

• -128 to 127

• fractional numbers storing up to 15 decimal digits

• -512 to 512

The equation below will print out what?

public class Main {

public static void main(String[] args) {

float myNum = 5.75;

System.out.println(myNum);

}

}

• 5.75

• myNum = 5.75

• 5

• 1 error

To use the Java term "char" for a single letter, can you use a single quote mark ', or do you have to use the double quote marks " ?

• YES

• NO

What are the two types of Java Casting?

"Two answers"

• Widening Casting

• Short Casting

• Narrowing Casting

• Long Casting

What are two types of Java "Operation" groups?

"Two answers"

• Combining Operators

• Bitwise Operators

• Comparison Operators

• Washing Operators

What will be the printout of the follow equation using the Java assignment operation?

public class Main {

public static void main(String[] args) {

int x = 5;

x *= 3;

System.out.println(x);

}

}

• 15

• 8

• 2

• Error

What will be the printout of the following Java equation?

public class Main {

public static void main(String[] args) {

String firstName = "John ";

String lastName = "Doe";

System.out.println(firstName.concat(lastName));

}

}

• JohnDoe

• John Doe

• Error

• John concat Doe

What will be the printout of the following equation?

public class Main {

public static void main(String[] args) {

String x = "10";

String y = "20";

String z = x + y;

System.out.println(z);

}

}

• Error

• 20

• 30

• 1020