43 lines
1.3 KiB
Java
43 lines
1.3 KiB
Java
// operators/Bool.java
|
|
// (c)2016 MindView LLC: see Copyright.txt
|
|
// We make no guarantees that this code is fit for any purpose.
|
|
// Visit http://OnJava8.com for more book information.
|
|
// Relational and logical operators
|
|
import java.util.*;
|
|
|
|
public class Bool {
|
|
public static void main(String[] args) {
|
|
Random rand = new Random(47);
|
|
int i = rand.nextInt(100);
|
|
int j = rand.nextInt(100);
|
|
System.out.println("i = " + i);
|
|
System.out.println("j = " + j);
|
|
System.out.println("i > j is " + (i > j));
|
|
System.out.println("i < j is " + (i < j));
|
|
System.out.println("i >= j is " + (i >= j));
|
|
System.out.println("i <= j is " + (i <= j));
|
|
System.out.println("i == j is " + (i == j));
|
|
System.out.println("i != j is " + (i != j));
|
|
// Treating an int as a boolean is not legal Java:
|
|
//- System.out.println("i && j is " + (i && j));
|
|
//- System.out.println("i || j is " + (i || j));
|
|
//- System.out.println("!i is " + !i);
|
|
System.out.println("(i < 10) && (j < 10) is "
|
|
+ ((i < 10) && (j < 10)) );
|
|
System.out.println("(i < 10) || (j < 10) is "
|
|
+ ((i < 10) || (j < 10)) );
|
|
}
|
|
}
|
|
/* Output:
|
|
i = 58
|
|
j = 55
|
|
i > j is true
|
|
i < j is false
|
|
i >= j is true
|
|
i <= j is false
|
|
i == j is false
|
|
i != j is true
|
|
(i < 10) && (j < 10) is false
|
|
(i < 10) || (j < 10) is false
|
|
*/
|