Application crashes when given big number

Question

I created an app that generate random number between 2 given values and and its working good it dose what it say but if i entered 11 digit number in the max value (or min value) the app crashes how can I fix it is there another way to generate random number to support big values here is the code

        Button gen = (Button)findViewById(R.id.button);
        final EditText mini = (EditText)findViewById(R.id.mini);
        final EditText maxi = (EditText)findViewById(R.id.maxi);
        final TextView res = (TextView)findViewById(R.id.result);

        final Random r = new Random();
        final int[] number = {0};

        gen.setOnClickListener(new View.OnClickListener() {
           @Override
           public void onClick(View view) {
                int minn = Integer.parseInt(mini.getText().toString());
                int maxx = Integer.parseInt(maxi.getText().toString());

                if (minn>=maxx){
                   maxi.setText(String.valueOf(minn));
                   mini.setText(String.valueOf(maxx));
                   maxx = Integer.parseInt(maxi.getText().toString());
                   minn = Integer.parseInt(mini.getText().toString());
                   number[0] = minn + r.nextInt(maxx - minn + 1);
                   res.setText(String.valueOf(number[0]));
               }else{
                   number[0] = minn + r.nextInt(maxx - minn + 1);
                   res.setText(String.valueOf(number[0]));
               }
               getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);
            }   
       });
} 

Answer 1

You have to use long or double instead of Integer. Because Integer doesn't support that much large value.

long minn = Long.parseInt(mini.getText().toString());
           long maxx = Long.parseInt(maxi.getText().toString());

or

double minn = Double.parseInt(mini.getText().toString());
               double maxx = Double.parseInt(maxi.getText().toString());

Answer 2

This is occuring because the Integer class doesn't support values that large. Try using Longs or Floats. That should work.

Answer 3

The max value of int is 2,147,483,647

use long if you need higher values

Answer 4

Set minn and maxx variables to long.

Integer:

• MAX VALUE = 2147483647
• MIN VALUE = -2147483648

Long:

• MAX VALUE = 9223372036854775807
• MIN VALUE = -9223372036854775808

Find out more: http://docs.oracle.com/javase/tutorial/java/nutsandbolts/datatypes.html

Answer 5

If you want to operate on really big numbers, use BigInteger instead.Integer can't handle big numbers and that's the reason why it's failing for you.