How to Convert String Type Variables into Boolean In Java Program

July 28, 2023

Java Program to convert string type variables into boolean

Java Strings

  • In Java, a string is a sequence of characters. It is an object of the class java.lang.String, which is defined in the Java standard library.
  • Text is represented by strings, which are also frequently used to represent messages, names, and other types of human-readable data.
  • Strings in Java are immutable, which means that once you create a string object, its value cannot be changed.
  • You must be familiar with following topics to understand the correspond example Such as: Java Strings, Java Data Types. 

Steps to Convert String Type Variable into Boolean 

  • Here are the steps to Convert String Type Variable into Boolean  in Java:, You can follow these steps:

    • Declare a string variable: To start with, you need to declare a string type variable to store the string value that you want to convert.

    • Call the Boolean.valueOf() method: The Boolean.valueOf() method takes a string as an argument and returns its boolean equivalent.

    • Store the result in a boolean variable: The boolean value returned by the Boolean.valueOf() method can be stored in a boolean variable for further use.

    • Use the boolean variable: Finally, you can use the boolean variable to perform various operations or as an argument in method calls.

There are three ways to convert a string type variable into a boolean in Java:

Introduction to java

enumset in java 

enhanced-for-loop

enum-inheritance

enum-string

Let’s look at a Java Program to Convert String Type Variable into Boolean in Java to perform certain operations.

Example 1: Java Program to Convert String Type Variable into Boolean.

Run

public class Main {
  public static void main(String[] args) {
      //String
    String str = "true";
    //String to boolean
    boolean result = Boolean.parseBoolean(str);
    //Return boolean value
    System.out.println(result);
  }
}

Output

true
java desk gif
java mob gif

Example 2 : Java Program to Convert string to boolean using valueOf()

Run

public class Main {
  public static void main(String[] args) {
      //String
    String str1 = "yes";
    String str2 = "false";
    //String to boolean 
    boolean bool1 = Boolean.valueOf(str1);
    boolean bool2 = Boolean.valueOf(str2);
    //Return boolean value
    System.out.println("String 'yes' converted to boolean: " + bool1);
    System.out.println("String 'false' converted to boolean: " + bool2);
  }
}

Output

String 'yes' converted to boolean: false
String 'false' converted to boolean: false

Example 3: Java Program to Convert string to boolean using valueOf() 

Run 
public class Main {
  public static void main(String[] args) {
    String str = "false";
    boolean bool = Boolean.valueOf(str);
    System.out.println("String 'false' converted to boolean: " + bool);
  }
}

Output

String 'false' converted to boolean: false

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