java random number
import java.util.Random;
Random rand = new Random();
// Obtain a number between [0 - 49].
int n = rand.nextInt(50);
// Add 1 to the result to get a number from the required range
// (i.e., [1 - 50]).
n += 1;
java random number
import java.util.Random;
Random rand = new Random();
// Obtain a number between [0 - 49].
int n = rand.nextInt(50);
// Add 1 to the result to get a number from the required range
// (i.e., [1 - 50]).
n += 1;
random number generator java
import java.util.Random;
class GenerateRandom {
public static void main( String args[] ) {
Random rand = new Random(); //instance of random class
int upperbound = 25;
//generate random values from 0-24
int int_random = rand.nextInt(upperbound);
double double_random=rand.nextDouble();
float float_random=rand.nextFloat();
System.out.println("Random integer value from 0 to" + (upperbound-1) + " : "+ int_random);
System.out.println("Random float value between 0.0 and 1.0 : "+float_random);
System.out.println("Random double value between 0.0 and 1.0 : "+double_random);
}
}
Random number generator in java
// example on Math.random() method in java
public class RandomMethodExample
{
public static void main(String[] args)
{
// here we are generating random doubles
System.out.println(Math.random());
System.out.println(Math.random());
}
}
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