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Java program to convert degree to radian using library method

// Java program to convert degree to radian 
// using library method

import java.util.*;

public class Main {
  public static void main(String[] args) {
    Scanner X = new Scanner(System.in);

    double degree = 0;

    System.out.print("Enter degree: ");
    degree = X.nextDouble();

    double rad = Math.toRadians(degree);

    System.out.print("Radian is: " + rad);
  }
}

Output

Enter degree: 30
Radian is: 0.5235987755982988