Which of these statement is incorrect?

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Question:
Which of these statement is incorrect?

1.A thread can be formed by a class that extends Thread class.

2.start() method is used to begin execution of the thread.

3.run() method is used to begin execution of a thread before start() method in special cases.

4.A thread can be formed by implementing Runnable interface only.

Posted Date:-2021-10-25 05:31:30

More MCQS Questions and answers

  1. Decrement operator, , decreases value of variable by what number?
  2. Modulus operator, %, can be applied to which of these?
  3. On applying Left shift operator, <<, on an integer bits are lost one they are shifted past which position bit?
  4. Output : class increment { public static void main(String args[]) { double var1 = 1 + 5; double var2 = var1 / 4; int var3 = 1 + 5; int var4 = var3 / 4; System.out.print(var2 + " " + var4); } }
  5. Output : class increment { public static void main(String args[]) {int g = 3; System.out.print(++g * 8); } }
  6. Output : class Modulus { public static void main(String args[]){double a = 25.64; int b = 25; a = a % 10; b = b % 10; System.out.println(a + " " + b); } }
  7. Output : class Output { public static void main(String args[]){ int x , y; x = 10; x++; --x; y = x++; System.out.println(x + " " + y); } }
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  10. What is synchronization in reference to a thread?
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  19. Which function of pre defined class Thread is used to check weather current thread being checked is still running?
  20. Which of the following can be operands of arithmetic operators?
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  25. Which of these interface is implemented by Thread class?
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  32. Which of these method is used to begin the execution of a thread?
  33. Which of these method is used to explicitly set the priority of a thread?
  34. Which of these method is used to implement Runnable interface?
  35. Which of these method of Thread class is used to find out the priority given to a thread?
  36. Which of these method of Thread class is used to Suspend a thread for a period of time?
  37. Which of these method waits for the thread to treminate?
  38. Which of these method waits for the thread to treminate?
  39. Which of these operators can skip evaluating right hand operand?
  40. Which of these operators is used to allocate memory to array variable in Java?
  41. Which of these packages contain all the Java's built in exceptions?
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  45. Which of these statements are incorrect?
  46. Which of these statements are incorrect?
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  49. Which right shift operator preserves the sign of the value?
  50. With x = 0, which of the following are legal lines of Java code for changing the value of x to 1? 1. x++; 2. x = x + 1; 3. x += 1; 4. x =+ 1;
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