Java Boolean logicalAnd() Method
The logicalAnd() method of Java Boolean class returns the result of implementing logical
AND operation on the specified Boolean operands.
Syntax:
public static boolean logicalAnd (boolean a, boolean b)
Parameters:
The parameters ‘a’ and ‘b’ represents first and second operands.
Return Value:
The logicalAnd () method returns the result after implementing logical AND operation on the parameters a and b.
? It returns true, if and only if both the parameters are true.
? It returns false, if either of the parameter is false.
Example 1
public class JavaBooleanLogicalAndMethodExample1 {
public static void main(String[] args) {
Boolean b1 = true;
Boolean b2 = false;
// return boolean value after implementing logical And operator
Boolean b3 = Boolean.logicalAnd(b1,b2);
Boolean b4 = Boolean.logicalAnd(b1,b1);
Boolean b5 = Boolean.logicalAnd(b2,b2);
Boolean b6 = Boolean.logicalAnd(b2,b1);
System.out.println("1. "+b1+" "+b2+" = "+b3);
System.out.println("2. "+b1+" "+b1+" = "+b4);
System.out.println("3. "+b2+" "+b2+" = "+b5);
System.out.println("4. "+b2+" "+b1+" = "+b6);
}
}
Output
1. true false = false 2. true true = true 3. false false = false 4. false true = false
Example 2
public class JavaBooleanLogicalAndMethodExample2 {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.println("Enter your Age.");
Double d1 = scanner.nextDouble();
Boolean b1 = true;
Boolean b2 ;
if (d1 >=18) {
b2 = true;
// logicalAnd() method will return true
Boolean b3 = Boolean.logicalAnd(b1,b2);
if((b3==true)) {
System.out.println("You are eligible to vote");
}
}
else{
System.out.println("Sorry! You are not eligible for voting.");
}
}
}
Output
Enter your Age. 18 You are eligible to vote
Example 3
import java.util.Scanner;
public class JavaBooleanLogicalAndMethodExample3 {
static int j=1;
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
Boolean b1 = true;
Boolean b2 = true;
System.out.println("Enter a number.");
int a=scanner.nextInt();
if (a>15|| a<=0){
b1=false;
}
Boolean b3=Boolean.logicalAnd(b1,b2);
if (b3) {
for (int i = 1; i <= 150; i++) {
int mul=a*10;
if (i%a == 0) {
System.out.println(a+" * "+ j++ +" = "+i);
}
if (i==mul){
break;
}
}
}
else{
System.out.println("Sorry ! Number is out of range. Plz try a number btw 1-15 ");
}
}
}
Output:
Enter a number. 9 9 * 1 = 9 9 * 2 = 18 9 * 3 = 27 9 * 4 = 36 9 * 5 = 45 9 * 6 = 54 9 * 7 = 63 9 * 8 = 72 9 * 9 = 81 9 * 10 = 90