Oracle 1Z1-803 Actual Free Exam Questions & Community Discussion
The protected modifier on a Field declaration within a public class means that the field ______________.
Correct Answer: D
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Given the code fragment:
What is the result if the integer aVar is 9?
What is the result if the integer aVar is 9?
Correct Answer: A
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Given the code fragment:
public class Test {
static String[][] arr =new String[3][];
private static void doPrint() {
//insert code here }
public static void main(String[] args) {
String[] class1 = {"A","B","C"};
String[] class2 = {"L","M","N","O"};
String[] class3 = {"I","J"};
arr[0] = class1;
arr[1] = class2;
arr[2] = class3;
Test.doPrint();
}
}
Which code fragment, when inserted at line //insert code here, enables the code to print COJ?
public class Test {
static String[][] arr =new String[3][];
private static void doPrint() {
//insert code here }
public static void main(String[] args) {
String[] class1 = {"A","B","C"};
String[] class2 = {"L","M","N","O"};
String[] class3 = {"I","J"};
arr[0] = class1;
arr[1] = class2;
arr[2] = class3;
Test.doPrint();
}
}
Which code fragment, when inserted at line //insert code here, enables the code to print COJ?
Correct Answer: A
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Given:
package p1;
public interface DoInterface { void method1(int n1); // line n1
}
package p3;
import p1.DoInterface;
public class DoClass implements DoInterface { public DoClass(int p1) { } public void method1(int p1) { } // line n2 private void method2(int p1) { } // line n3
}
public class Test {
public static void main(String[] args) {
DoInterface doi= new DoClass(100); // line n4
doi.method1(100);
doi.method2(100);
}
}
Which change will enable the code to compile?
package p1;
public interface DoInterface { void method1(int n1); // line n1
}
package p3;
import p1.DoInterface;
public class DoClass implements DoInterface { public DoClass(int p1) { } public void method1(int p1) { } // line n2 private void method2(int p1) { } // line n3
}
public class Test {
public static void main(String[] args) {
DoInterface doi= new DoClass(100); // line n4
doi.method1(100);
doi.method2(100);
}
}
Which change will enable the code to compile?
Correct Answer: C
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Given:
public class TestOperator {
public static void main(String[] args) {
int result = 30 -12 / (2*5)+1;
System.out.print("Result = " + result);
} }
What is the result?
public class TestOperator {
public static void main(String[] args) {
int result = 30 -12 / (2*5)+1;
System.out.print("Result = " + result);
} }
What is the result?
Correct Answer: C
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A method doSomething () that has no exception handling code is modified to trail a method that throws a checked exception. Which two modifications, made independently, will allow the program to compile?
Correct Answer: B,D
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Given:
public class Equal {
public static void main(String[] args) {
String str1 = "Java";
String[] str2 = {"J","a","v","a"};
String str3 = "";
for (String str : str2) {
str3 = str3+str;
}
boolean b1 = (str1 == str3);
boolean b2 = (str1.equals(str3));
System.out.print(b1+", "+b2);
} What is the result?
public class Equal {
public static void main(String[] args) {
String str1 = "Java";
String[] str2 = {"J","a","v","a"};
String str3 = "";
for (String str : str2) {
str3 = str3+str;
}
boolean b1 = (str1 == str3);
boolean b2 = (str1.equals(str3));
System.out.print(b1+", "+b2);
} What is the result?
Correct Answer: C
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Given:
public class Test {
public static void main(String[] args) {
int arr[] = new int[4];
arr[0] = 1;
arr[1] = 2;
arr[2] = 4;
arr[3] = 5;
int sum = 0;
try {
for (int pos = 0; pos <= 4; pos++) {
sum = sum + arr[pos];
}
} catch (Exception e) {
System.out.println("Invalid index");
}
System.out.println(sum); } }
What is the result?
public class Test {
public static void main(String[] args) {
int arr[] = new int[4];
arr[0] = 1;
arr[1] = 2;
arr[2] = 4;
arr[3] = 5;
int sum = 0;
try {
for (int pos = 0; pos <= 4; pos++) {
sum = sum + arr[pos];
}
} catch (Exception e) {
System.out.println("Invalid index");
}
System.out.println(sum); } }
What is the result?
Correct Answer: C
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