Ad
AnikNath114911vs.ParanoidUser

Make a simple calculator

Code
Diff
  • interface Calculator {
  static int calculate(int a, int b, char operation) {
    int result = 0;
    switch(operation) {
        case '+':
        result = a + b; break;
        case '-':
        result = a - b; break;
        case '*':
        result = a * b; break;
        default:
        System.exit(0); break;
    }
    return result;
  }
}
    • import javax.script.ScriptEngineManager;
    • interface Calculator {
    • static int calculate(int a, int b, char operation) {
    • var engine = new ScriptEngineManager().getEngineByName("JavaScript");
    • try {
    • return Integer.parseInt(String.valueOf(engine.eval(a + " " + operation + " " + b)));
    • } catch (Exception cause) {
    • return 0;
    • int result = 0;
    • switch(operation) {
    • case '+':
    • result = a + b; break;
    • case '-':
    • result = a - b; break;
    • case '*':
    • result = a * b; break;
    • default:
    • System.exit(0); break;
    • }
    • return result;
    • }
    • }