Q1. public class StringReplace { 

public static void main(String[] args) { 

String message = "Hi everyone!"; 

System.out.println("message = " + message.replace("e", "X")); } 

} 

What is the result? 

A. message = Hi everyone! 

B. message = Hi XvXryonX! 

C. A compile time error is produced. 

D. A runtime error is produced. 

E. message = 

F. message = Hi Xveryone! 

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Q2. Why will the code not compile? 

A. A static field cannot be private. 

B. The getLetter method has no body. 

C. There is no setLetter method. 

D. The letter field is uninitialized. 

E. It contains a method named Main instead of ma 

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Q3. racle 1z0-803 : Practice Test 

j = (3 * ((2+4) + 5)); 

System.out.println("i:"+ i + "\nj":+j); 

What is the result? 

A. Option A 

B. Option B 

C. Option C 

D. Option D 

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Q4. Given: 

Which two are possible outputs? 

A. Option A 

B. Option B 

C. Option C 

D. Option D 

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Q5. Which two will compile, and can be run successfully using the command: 

Java fred1 hello walls 

A. Option A 

B. Option B 

C. Option C 

D. Option D 

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Q6. Which code fragment is illegal? 

A. Option A 

B. Option B 

C. Option C 

D. Option D 

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Q7. Given the code fragment: 

What could expression1 and expression2 be, respectively, in order to produce output –8, 16? 

A. + +a, - -b 

B. + +a, b- 

C. A+ +, - - b 

D. A + +, b - 

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Q8. Given the code fragment: 

int [][] array2d = new int[2][3]; 

System.out.println("Loading the data."); 

for ( int x = 0; x < array2d.length; x++) { 

for ( int y = 0; y < array2d[0].length; y++) { 

System.out.println(" x = " + x); 

System.out.println(" y = " + y); 

// insert load statement here. 

} 

} 

System.out.println("Modify the data. "); 

for ( int x = 0; x < array2d.length; x++) { 

for ( int y = 0; y < array2d[0].length; y++) { 

System.out.println(" x = " + x); 

System.out.println(" y = " + y); 

// insert modify statement here. 

} 

} 

Which pair of load and modify statement should be inserted in the code? The load 

statement should set the array's x row and y column value to the sum of x and y 

The modify statement should modify the array's x row and y column value by multiplying it by 2 

A. Load statement: array2d(x,y) = x + y; 

Modify statement: array2d(x,y) = array2d(x,y) * 2 

B. Load statement: array2d[x y] = x + y; 

Modify statement: array2d[x y] = array2d[x y] * 2 

C. Load statement: array2d[x,y] = x + y; 

Modify statement: array2d[x,y] = array2d[x,y] * 2 

Oracle 1z0-803 : Practice Test 

D. Load statement: array2d[x][y] = x + y; 

Modify statement: array2d[x][y] = array2d[x][y] * 2 

E. Load statement: array2d[[x][y]] = x + y; 

Modify statement: array2d[[x][y]] = array2d[[x][y]] * 2 

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Q9. Given: 

Class A { } 

Class B { } 

Interface X { } 

Interface Y { } 

Which two definitions of class C are valid? 

A. Class C extends A implements X { } 

B. Class C implements Y extends B { } 

C. Class C extends A, B { } 

D. Class C implements X, Y extends B { } 

E. Class C extends B implements X, Y { } 

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Q10. Given the code fragment: 

String name = "Spot"; 

int age = 4; 

String str ="My dog " + name + " is " + age; 

System.out.println(str); 

And 

StringBuilder sb = new StringBuilder(); 

Using StringBuilder, which code fragment is the best potion to build and print the following 

string My dog Spot is 4 

A. sb.append("My dog " + name + " is " + age); System.out.println(sb); 

B. sb.insert("My dog ").append( name + " is " + age); System.out.println(sb); 

C. sb.insert("My dog ").insert( name ).insert(" is " ).insert(age); System.out.println(sb); 

D. sb.append("My dog ").append( name ).append(" is " ).append(age); 

System.out.println(sb); 

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