Null True False in Java 20

In Java 20, you can check the value of an object or primitive type to see if it is null, true or false using various conditional statements like if-else, ternary operator, switch statement, etc. Here are some examples to demonstrate each:

Checking for null value using if-else statement:

String str = null;
if(str == null) {
    System.out.println("String is null");
} else {
    System.out.println("String is not null");
}

Output:

String is null

Checking for true/false value using if-else statement:

boolean flag = true;
if(flag) {
    System.out.println("Flag is true");
} else {
    System.out.println("Flag is false");
}

Output:

Flag is true

Using ternary operator to check for null value:

String str = null;
String result = (str == null) ? "String is null" : "String is not null";
System.out.println(result);

Output:

String is null

Using switch statement to check for true/false value:

boolean flag = true;
switch(flag) {
    case true:
        System.out.println("Flag is true");
        break;
    case false:
        System.out.println("Flag is false");
        break;
}

Output:

Flag is true