Java-MCQs

1. Inheritance is way to a. Make general classes into more specific classes.b. Pass arguments to objects of classesc. Add features to existing classes without rewriting them.d. Improve data-hiding and encapsulation Answer : c) 2. Advantages of inheritance include a. providing class growthb. avoiding rewriting of codec. data abstractiond. simulation of real-world entities Answer : …

Java MCQ Set-5 : Multiple Choice Questions in Java Set-5 Read More »

Which of the following statement is true a. You can directly read text from a FileReader.b. You can directly write  text to a File Reader.c. You can directly read ints and floats from a FileReader.d. You can directly write longs and shorts to a FileWriter. Answer : a) What type of data would you read …

Java MCQ Set-4 : Multiple Choice Questions in Java Set-4 Read More »

1. Predict the output produced by the following code: int I =0;outer:while (true){I ++;inner :for(int j = 0; j<10; j++){I+ = j;continue inner r;break outer;}continue outer;}System.out.println(I); a. 0b. 1c. 2d. 5 Answer : b) 2. State the output of the following code: int a = 10, b=5;if(a>b){if(b>5)System.out.println(“b is”+ b);}elseSystem.out.println(“a is”+ a); a. 5b. 10c. No …

Java MCQ Set-3 : Multiple Choice Questions in Java Set-3 Read More »

1. Select the boolean expression that is not equivalent to x.x + x.x’ x .(x + x’) (x  + x’).x x’ x Answer : 3)  2. Select the expression which is equivalent to x.y + x.y.z x.y x.z y.z x.y.z Answer : 1) Java MCQ Set-1 Explanation 3. Select the expression which is equivalent to …

Java MCQ Set-1 : Multiple Choice Questions in Java Set-1 Read More »