Java integer maximum and minimum values and variable declaration

Java integer maximum and minimum values and variable declaration

Integer maximum and minimum

A constant holds the highest value of intelligence can possess 31-1 2 ^.

A constant holds the minimum value, and the intelligence can be reduced by 2 ^ 31.

Public class MainClass {

Public static void main (String [] arg ){
System. out. println (Integer. MAX_VALUE );

System. out. println (Integer. MIN_VALUE );

  }
}

BitCount binary representation

Public class MainClass {
Public static void main (String args []) {
Int n = 170; // 10101010

System. out. println ("Value in binary: 10101010 ");

System. out. println ("Number of one bits:" + Integer. bitCount (n ));
  }
}

Value in binary: 10101010
Number of one bits: 4

Declare an integer variable

Public class Main {
Public static void main (String [] args ){
Integer required bj1 = new Integer (10 );
Integer between bj2 = new Integer ("10 ");
System. out. println (required bj1 );
System. out. println (ipvbj2 );
  }
}