Return system property as integer

static Integer getInteger(String nm)

Get the system property.

static Integer getInteger(String nm, int val)

Get the integer value of the system property with a default value.

static Integer getInteger(String nm, Integer val)

Returns the integer value of the system property with a default value.

public class Main {
  public static void main(String[] args) {
    System.setProperty("myKey","10");
    System.out.println(Integer.getInteger("myKey"));
  }
}

The output:

10

1. Integer class
2. Max, min value of an integer type variable
3. Create Integer using its constructors
4. Return an integer value as byte, double, float, int, long and short
5. Compare two integer values
6. Decode a string and return an integer value
7. Convert string to integer
8. Convert integer to string
9. Reverse and rotate the integer in binary format
10. Bit oriented operation
11. Return system property as integer
12. Get the leading and trailing zeros
13. Get the sign of an Integer
14. Convert integer to binary, hexdecimal and octal format