How do you use math random to generate random ints

Question

How do you use Math random to generate random ints   My code is   int abc   Math random   100   System out println abc     All it prints out is 0  how can I fix this

User · Answer

you are importing java util package  That s why its giving error  there is a random   in java util package too  Please remove the import statement importing java util package  then your program will use random   method for java lang by default and then your program will work  remember to cast it i e  int x    int  Math random   100

User · Answer

int abc   Math random   100      wrong    you wil get below error message     Exception in thread  main  java lang Error  Unresolved compilation   problem       Type mismatch  cannot convert from double to int   int abc   int   Math random   100     add   int   data type    known as type casting  if the true result is  int abc   int   Math random   1  0 027475   Then you will get output as  0  because it is a integer data type   int abc   int   Math random   100  0 02745   output 2   because  100 0 02745 2 7456   etc

User · Answer

As an alternative  if there s not a specific reason to use Math random    use Random nextInt     import java util Random   Random rnd   new Random    int abc   rnd nextInt 100       1 if you want 1-100  otherwise will be 0-99

User · Answer

double  i   2 Math random   100  int j    int i  System out print j

User · Answer

You can also use this way for getting random number between 1 and 100 as    SecureRandom src new SecureRandom    int random 1   src nextInt 100

User · Answer

Cast abc to an integer    int  Math random   100

User · Answer

For your code to compile you need to cast the result to an int   int abc    int   Math random     100     However  if you instead use the java util Random class it has built in method for you  Random random   new Random    int abc   random nextInt 100

[java] How do you use math.random to generate random ints?

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