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AtomicInteger set() method in Java with examples

  • Last Updated : 29 Jan, 2019
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The java.util.concurrent.atomic.AtomicInteger.set() 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 set(int newVal)

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

Return value: The function does not returns anything.

Program below demonstrates the function:



Program 1:




// Java program that demonstrates
// the set() function
  
import java.util.concurrent.atomic.AtomicInteger;
  
public class GFG {
    public static void main(String args[])
    {
  
        // Initially value as 0
        AtomicInteger val
            = new AtomicInteger(0);
  
        System.out.println("Previous value: "
                           + val);
  
        val.set(10);
  
        // Prints the updated value
        System.out.println("Current value: "
                           + val);
    }
}
Output:
Previous value: 0
Current value: 10

Program 2:




// Java program that demonstrates
// the set() function
  
import java.util.concurrent.atomic.AtomicInteger;
  
public class GFG {
    public static void main(String args[])
    {
  
        // Initially value as 18
        AtomicInteger val
            = new AtomicInteger(18);
  
        System.out.println("Previous value: "
                           + val);
  
        val.set(200);
  
        // Prints the updated value
        System.out.println("Current value: "
                           + val);
    }
}
Output:
Previous value: 18
Current value: 200

Reference: https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/atomic/AtomicInteger.html#set–

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