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Java Exercises: Convert a string to an integer in Java

Java Basic: Exercise-51 with Solution

Write a Java program to convert a string to an integer in Java.

Sample Solution:

Java Code:

import java.util.*;
public class Exercise51 {

 public static void main(String[] args)
    {
        Scanner in = new Scanner(System.in);
        System.out.print("Input a number(string): ");
        String str1 = in.nextLine();
		int result = Integer.parseInt(str1);
        System.out.printf("The integer value is: %d",result);
		System.out.printf("\n");
    }
}

Sample Output:

Input a number(string): 25                                             
The integer value is: 25

Flowchart:

Flowchart: Java exercises: Convert a string to an integer in Java

Java Code Editor:

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Previous: Write a Java program to print numbers between 1 to 100 which are divisible by 3, 5 and by both.
Next: Write a Java program to calculate the sum of two integers and return true if the sum is equal to a third integer.

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Java: Tips of the Day

countOccurrences

Counts the occurrences of a value in an array.

Use Arrays.stream().filter().count() to count total number of values that equals the specified value.

public static long countOccurrences(int[] numbers, int value) {
    return Arrays.stream(numbers)
            .filter(number -> number == value)
            .count();
}

Ref: https://bit.ly/3kCAgLb