Tag: programming languages

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Questions Related to programming languages

Multiple choice technology programming languages

What will be the output on compiling/running the following code? public class MyThread implements Runnable { String myString = "Yes "; public void run() { this.myString = "No "; } public static void main(String[] args) { MyThread t = new MyThread(); new Thread(t).start(); for (int i=0; i < 10; i++) System.out.print(t.myString); } }

  1. Compilation Error

  2. Prints : Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes and so on.

  3. Prints : No No No No No No No No No No and so on.

  4. Prints : Yes No Yes No Yes No Yes No Yes No and so on.

  5. The Output cannot be determined.
Reveal answer Fill a bubble to check yourself
E Correct answer
Full explanation
Multiple choice technology programming languages

1) What will be the output of the following program?package chapters.chap02;public class Chap02 { public static void main(String[] args) { for (int i=0; i&lt;5; i++){ switch (i){ case 0: System.out.println(&quot;0&quot;); ++i; break; case -1: System.out.println(&quot;-1&quot;); break; case 2: System.out.println(&quot;2&quot;); i++; case 4: System.out.println(&quot;4&quot;); break; } } }}

  1. The program will not stop and it will run recursively upon execution

  2. The program will output '0 2 5 5'.

  3. The program will output '0 2 4 4'.

  4. The program will output '02 4 5'.
Reveal answer Fill a bubble to check yourself
C Correct answer
Full explanation
Multiple choice technology programming languages

2) What will be the output of the following program when it is made to run with the options "java scjp5_0.chap07.Ques01 1"package scjp5_0.chap07;public class Ques01 { public static void main(String[] args) { for (int i = 0; i < 2; i ++){ try{ System.out.println(args[i]); }catch(Exception e){} } }}

  1. The program will output 'scjp5_0.chap07.Ques01 1'.

  2. The program will output 1.

  3. The program will output '1' and then will raise an ArrayIndexOutOfBoundsException.

  4. The program won't print anything but will raise an ArrayIndexOutOfBoundsException at run-time.
Reveal answer Fill a bubble to check yourself
B Correct answer
Full explanation
Multiple choice technology programming languages

4) What is the result of compiling and running the following code? class VarArgOne { public static void printArgs(String s, Integer ... i, String s) { //line 1 for(int j : i) { //line 2 System.out.print(j + " " + s); //line 3 } } public static void main(String ... args) { //line 4 printArgs("exam", 12, 34, "scjp"); //line 5 } }

  1. Compilation fails due to error at line 1.

  2. Compilation fails due to error at line 2.

  3. Compilation fails due to error at line 4.

  4. Compilation fails due to error at both line 1 and line 4.
Reveal answer Fill a bubble to check yourself
A Correct answer
Full explanation