title: Create a bingo game using java
body: <p>I want to create a bingo game using arrays, methods in java. But I totally have no idea about how to get start it. Can someone give me some key tips for me to get start it? Like, how do I use the random class to generate a series of numbers in an array? Here is the part of the question:</p>
  
  <p>The first column consists of integers from 1 to 15, the second column consists of integers from 16 to 30, the third column consists of
  integers from 31 to 45, the fourth column consists of integers from 46 to 60, and the last
  column consists of integers from 61 to 75. Note that the numbers are not repeated.</p>
  
  <p>So, how do I create a list of numbers in a range of 1 to 15 in column 1 within an array?</p>