Free 98-388: Introduction to Programming Using Java Exam Questions and Answers

You are debugging the following Java program saved in a file named Test.java. 1 public class Test { 2 public static void main(String[] args) { 3 int[] data = new int[3]; 4 data[3] = 10; 5 } 6 } The program compiles without errors. Complete the statements by selecting the correct option from each list. Statement 1: When the program runs, the console displays an exception of type Box 1ArrayIndexOutOfBoundsExceptionNullPointerExceptionArithmeticException. Statement 2: The stack trace reports that the exception occurred in Test.java at line Box 2345. Statement 3: This kind of error is a Box 3syntax errorlogic errorruntime error.

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You are writing a Java program that must display the even numbers 2, 4, 6, 8 and 10, each on its own line. int n = 2; while (n Box 1<<=!= 10) { System.out.println(n); n Box 2+=*==+ 2; } Complete the code by selecting the correct option from each list.

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You are writing a Java application named Report. The program is started from the command line with the following command: java Report east 12 west The main method contains this statement: System.out.println(args.length + args[0]); What is the output?

• AA. 3Report
• BB. 3east
• CC. east3
• DD. 4east

For each of the following statements, select Yes if the statement is true. Otherwise, select No. 1. A missing semicolon at the end of a statement is reported as an error by javac before the program runs. 2. A program that compiles successfully but displays an incorrect total contains a syntax error. 3. A stack trace lists the method calls that were active at the time an exception occurred.

Answer each statement, then reveal.

1. A missing semicolon at the end of a statement is reported as an error by javac before the program runs.YesNo
2. A program that compiles successfully but displays an incorrect total contains a syntax error.YesNo
3. A stack trace lists the method calls that were active at the time an exception occurred.YesNo

You are writing a Java program that contains the following code segment. try { int[] a = new int[2]; a[2] = 5; System.out.print("A"); } catch (ArithmeticException e) { System.out.print("B"); } catch (RuntimeException e) { System.out.print("C"); } finally { System.out.print("D"); } System.out.print("E"); What is the output?

• AA. BDE
• BB. CD
• CC. CDE
• DD. ACDE

You are reviewing the following Java code segment. int x = 15; if (x > 10) if (x > 20) System.out.print("Large"); else System.out.print("Small"); System.out.print("Done"); What is the output?

• AA. LargeDone
• BB. Small
• CC. SmallDone
• DD. Done

You have the following Java declaration: String s = "Java Exam"; Match each expression to the value it returns. Each result may be used once, and one result will not be used. Expressions (targets): 1. s.length() 2. s.charAt(5) 3. s.substring(5) 4. s.indexOf("a") Results (items): - 1 - 9 - E - Exam - JAVA EXAM

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You are writing a Java program that reads from the keyboard. import java.util.Scanner; public class Echo { public static void main(String[] args) { Scanner in = new Scanner(System.in); int a = in.nextInt(); int b = in.nextInt(); String w = in.next(); System.out.println(w + (a + b)); } } The user types the following input and presses Enter: 12 5 hello What is the output?

• AA. 17hello
• BB. hello 17
• CC. hello17
• DD. hello125

You are writing a Java program that prints a greeting using the first command-line argument. The program must start when it is run with the java command. Complete the code by moving the correct code fragment to each target. A fragment may be used once, more than once, or not at all. Code fragments: static void int String[] String 0 1 args.length Code: public class Greeter { public [Target 1] [Target 2] main([Target 3] args) { System.out.println("Hello, " + args[[Target 4]]); } }

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You are reviewing the following Java code segment. int count = 0; for (int i = 0; i < 4; i++) { for (int j = 0; j < 4; j++) { if (j == i) continue; if (j > 2) break; count++; } } System.out.println(count); What is the output?

• AA. 6
• BB. 8
• CC. 9
• DD. 12