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Today, you can find my book at BookSurge.com.
Are you a university student studying Java programming? Do you agree that my book would serve as a helpful workbook and companion to be used along with the Java fundamentals textbook that is currently being used in your class? If so, then please ask your professor to consider using my book in future classes.
If you have any questions or comments concerning my mock exams or my book, then please send an e-mail to me at scjpexam2000@yahoo.com.
I would also like to read your response to the following questions.
class MCZ11 {
public static void main (String[] args) {
char a = '\c'; // 1
char b = '\r'; // 2
char c = '\"'; // 3
char d = '\b'; // 4
char e = '\''; // 5
}}
A compile-time error is generated at which line?
| a. | 1 |
| b. | 2 |
| c. | 3 |
| d. | 4 |
| e. | 5 |
| f. | None of the above |
class GFM11{
public static void main (String[] args) {
int x,y,z;
System.out.println(x+y+z);
}}
What is the result of attempting to compile and run the program?
| a. | Prints nothing. |
| b. | Prints an undefined value. |
| c. | Prints: null |
| d. | Prints: 0 |
| e. | Run-time error |
| f. | Compile-time error |
| g. | None of the above |
class MCZ27 {
public static void main (String[] args) {
char a = '\f'; // 1
char b = '\n'; // 2
char c = '\r'; // 3
char d = '\l'; // 4
char e = '\\'; // 5
}}
A compile-time error is generated at which line?
| a. | 1 |
| b. | 2 |
| c. | 3 |
| d. | 4 |
| e. | 5 |
| f. | None of the above |
class GRC4 {public static void main(String[] args) {}} // 1
class GRC5 {public static void main(String []args) {}} // 2
class GRC6 {public static void main(String args[]) {}} // 3
What is the result of attempting to compile and run the above programs?
| a. | Compile-time error at line 1. |
| b. | Compile-time error at line 2. |
| c. | Compile-time error at line 3. |
| d. | An attempt to run GRC4 from the command line fails. |
| e. | An attempt to run GRC5 from the command line fails. |
| f. | An attempt to run GRC6 from the command line fails. |
| g. | None of the above |
class MCZ28 {
public static void main (String[] args) {
char a = '\b'; // 1
char b = '\d'; // 2
char c = '\f'; // 3
char d = '\t'; // 4
char e = '\"'; // 5
}}
A compile-time error is generated at which line?
| a. | 1 |
| b. | 2 |
| c. | 3 |
| d. | 4 |
| e. | 5 |
| f. | None of the above |
class JJF1 {
public static void main (String args[]) {
System.out.print(Byte.MIN_VALUE+",");
System.out.print(Byte.MAX_VALUE);
}}
What is the result of attempting to compile and run the program?
| a. | Prints: 0,255 |
| b. | Prints: 0,256 |
| c. | Prints: -127,128 |
| d. | Prints: -128,127 |
| e. | Compile-time error |
| f. | Run-time error |
| g. | None of the above |
class GFC100 {
public static void main(String[] args) {
final short s1 = 1; // 1
final char c1 = 1; // 2
byte b1 = s1; // 3
byte b2 = c1; // 4
byte b3 = 1; // 5
byte b4 = 1L; // 6
byte b5 = 1.0; // 7
byte b6 = 1.0d; // 8
}}
Compile-time errors are generated at which lines?
| a. | 1 |
| b. | 2 |
| c. | 3 |
| d. | 4 |
| e. | 5 |
| f. | 6 |
| g. | 7 |
| h. | 8 |
class MWC101 {
public static void main(String[] args) {
int[] a1 = new int[]; // 1
int a2[] = new int[5]; // 2
int[] a3 = new int[]{1,2}; // 3
int []a4 = {1,2}; // 4
int[] a5 = new int[5]{1,2,3,4,5}; // 5
}}
Compile-time errors are generated at which lines?
| a. | 1 |
| b. | 2 |
| c. | 3 |
| d. | 4 |
| e. | 5 |
class GRC1 {public static void main(String[] args) {}} // 1
class GRC2 {protected static void main(String[] args) {}} // 2
class GRC3 {private static void main(String[] args) {}} // 3
What is the result of attempting to compile each of the three class declarations and invoke each main method from the command line?
| a. | Compile-time error at line 1. |
| b. | Compile-time error at line 2. |
| c. | Compile-time error at line 3. |
| d. | An attempt to run GRC1 from the command line fails. |
| e. | An attempt to run GRC2 from the command line fails. |
| f. | An attempt to run GRC3 from the command line fails. |
class JJF2 {
public static void main (String args[]) {
System.out.print(Short.MIN_VALUE+",");
System.out.print(Short.MAX_VALUE);
}}
What is the result of attempting to compile and run the program?
| a. | Prints: -32767,32768 |
| b. | Prints: -32768,32767 |
| c. | Prints: 0,65535 |
| d. | Prints: 0,65536 |
| e. | Compile-time error |
| f. | Run-time error |
| g. | None of the above |
class GFC101 {
public static void main(String[] args) {
byte b1 = -128; // 1
byte b2 = 128; // 2
short s1 = -32769; // 3
short s2 = 32767; // 4
char c1 = 0; // 5
char c2 = 65536; // 6
}}
Compile-time errors are generated at which lines?
| a. | 1 |
| b. | 2 |
| c. | 3 |
| d. | 4 |
| e. | 5 |
| f. | 6 |
class MWC102 {
public static void main (String[] args) {
byte[] a = new byte[1]; long[] b = new long[1];
float[] c = new float[1]; Object[] d = new Object[1];
System.out.print(a[0]+","+b[0]+","+c[0]+","+d[0]);
}}
What is the result of attempting to compile and run the program?
| a. | Prints: 0,0,0,null |
| b. | Prints: 0,0,0.0,null |
| c. | Compile-time error |
| d. | Run-time error |
| e. | None of the above |
class JJF3 {
public static void main(String args[]) {
System.out.print(Integer.toBinaryString(Byte.MAX_VALUE)+",");
System.out.print(Integer.toOctalString(Byte.MAX_VALUE)+",");
System.out.print(Integer.toString(Byte.MAX_VALUE)+",");
System.out.print(Integer.toHexString(Byte.MAX_VALUE));
}}
What is the result of attempting to compile and run the program?
| a. | Prints: 1111111,177,127,7f |
| b. | Prints: 11111111,377,256,ff |
| c. | Compile-time error |
| d. | Run-time error |
| e. | None of the above |
class GFC102 {
public static void main(String[] args) {
byte b1 = -129; // 1
byte b2 = 127; // 2
short s1 = -32768; // 3
short s2 = 32768; // 4
char c1 = -1; // 5
char c2 = 65535; // 6
}}
Compile-time errors are generated at which lines?
| a. | 1 |
| b. | 2 |
| c. | 3 |
| d. | 4 |
| e. | 5 |
| f. | 6 |
Which of these words belong to the set of Java keywords?
| a. | transient |
| b. | serializable |
| c. | runnable |
| d. | run |
| e. | volatile |
| f. | externalizable |
| g. | cloneable |
class GFM12 {
static int x; // 1
public static void main(String[] args) { // 2
int y; // 3
System.out.println("x="+x); // 4
System.out.println("y="+y); // 5
}}
What is the result of attempting to compile and run the program?
| a. | Compile-time error at line 1. |
| b. | Compile-time error at line 2. |
| c. | Compile-time error at line 3. |
| d. | Compile-time error at line 4. |
| e. | Compile-time error at line 5. |
| f. | Run-time error |
| g. | None of the above |
class GFM13 {
static byte a; static short b; static char c;
static int d; static long e; static String s;
public static void main(String[] args) {
System.out.println(a+b+c+d+e+s);
}}
What is the result of attempting to compile and run the program?
| a. | Prints: 00000null |
| b. | Prints: 00000 |
| c. | Prints: 0null |
| d. | Prints: 0 |
| e. | Prints: null |
| f. | Compile-time error |
| g. | Run-time error |
| h. | None of the above |
Which of these words belong to the set of Java keywords?
| a. | virtual |
| b. | goto |
| c. | ifdef |
| d. | typedef |
| e. | friend |
| f. | struct |
| g. | implements |
| h. | union |
| i. | const |
class Identifiers {
int i1; // 1
int _i2; // 2
int i_3; // 3
int #i4; // 4
int $i5; // 5
int %i6; // 6
int i$7; // 7
int 8i; // 8
}
Compile-time errors are generated at which lines?
| a. | 1 |
| b. | 2 |
| c. | 3 |
| d. | 4 |
| e. | 5 |
| f. | 6 |
| g. | 7 |
| h. | 8 |