AtomicBoolean lazySet() method in Java with Examples

The java.util.concurrent.atomic.AtomicBoolean.lazySet() is an inbuilt method in java that updates the previous value and sets it to a new value which is passed in the parameter.

Syntax:

public final void lazySet(boolean newVal)

Parameters: The function accepts a single mandatory parameter newVal which is to be updated.



Return Value: The function does not returns anything.

Below programs illustrate the above function:

Program 1:

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// Java program that demonstrates
// the lazySet() function
  
import java.util.concurrent.atomic.AtomicBoolean;
  
public class GFG {
    public static void main(String args[])
    {
  
        // Initially value as false
        AtomicBoolean val
            = new AtomicBoolean(false);
  
        System.out.println("Previous value: "
                           + val);
  
        val.lazySet(true);
  
        // Prints the updated value
        System.out.println("Current value: "
                           + val);
    }
}

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Output:

Previous value: false
Current value: true

Program 2:

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// Java program that demonstrates
// the lazySet() function
  
import java.util.concurrent.atomic.AtomicBoolean;
  
public class GFG {
    public static void main(String args[])
    {
  
        // Initially value as true
        AtomicBoolean val
            = new AtomicBoolean(true);
  
        System.out.println("Previous value: "
                           + val);
  
        val.lazySet(false);
  
        // Prints the updated value
        System.out.println("Current value: "
                           + val);
    }
}

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Output:

Previous value: true
Current value: false

Reference: https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/atomic/AtomicBoolean.html#lazySet-boolean-



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