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Java Exercises: Find the value of specified expression

Java Basic: Exercise-151 with Solution

Write a Java program to find the value of following expression.

a) 101 + 0) / 3
b) 3.0e-6 * 10000000.1
c) true && true
d) false && true
e) (false && false) || (true && true)
f) (false || false) && (true && true)

Sample Solution:

Java Code:

public class Solution {
	public static void main(String[] args) {
		int r1 = (101 + 0) / 3;
		double r2 = 3.0e-6 * 10000000.1;
		boolean r3 = true && true;
		boolean r4 = false && true;
		boolean r5 = (false && false) || (true && true);
		boolean r6 = (false || false) && (true && true);
		
		System.out.println("(101 + 0) / 3)-> " + r1);
		System.out.println("(3.0e-6 * 10000000.1)-> " + r2);
		System.out.println("(true && true)-> " + r3);
		System.out.println("(false && true)-> " + r4);
		System.out.println("((false && false) || (true && true))-> " + r5);
		System.out.println("(false || false) && (true && true)-> " + r6);
	}
}

Sample Output:

(101 + 0) / 3)-> 33
(3.0e-6 * 10000000.1)-> 30.0000003
(true && true)-> true
(false && true)-> false
((false && false) || (true && true))-> true
(false || false) && (true && true)-> false

Flowchart:

Flowchart: Java exercises: Test if a binary tree is a subtree of another binary tree.

Java Code Editor:

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Java: Tips of the Day

Count the number of occurrences of a char in a String:

int count = StringUtils.countMatches("a.b.c.d", ".");

Ref: https://bit.ly/2OTy6sG