gs gs128 Java Util More Utility Classes - Java Random Number - Quiz No.1
gs gs128 Java Quiz
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Question 1: Which class is used to generate random number?
java.lang.Object
java.util.randomNumber
java.util.Random
java.util.Object
Question 2: Which method is used to generate boolean random values in java?
nextBoolean()
randomBoolean()
previousBoolean()
generateBoolean()
Question 3: What is the return type of Math.random() method?
Integer
Double
String
Boolean
Question 4: Random is a final class?
True
False
Question 5: What is the range of numbers returned by Math.random() method?
-1.0 to 1.0
-1 to 1
0 to 100
0.0 to 1.0
Question 7: What will be the output of the following Java code snippet?
int a = random.nextInt(15) + 1;
Random number between 1 to 15, including 1 and 15
Random number between 1 to 15, excluding 15
Random number between 1 to 15, excluding 1
Random number between 1 to 15, excluding 1 and 15
Question 8: What will be the output of the following Java code snippet?
int a = random.nextInt(7) + 4;
Random number between 4 to 7, including 4 and 7
Random number between 4 to 7, excluding 4 and 7
Random number between 4 to 10, excluding 4 and 10
Random number between 4 to 10, including 4 and 10
Question 10: What is the signature of Math.random() method?
public static double random()
public void double random()
public static int random()
public void int random()
