Rava2 - Java Source Interpreter

/* retoor <retoor@molodetz.nl> */

import java.util.LinkedList;
import java.util.TreeSet;

public class ExtraStdlibFeatures {
    public static void main(String[] args) {
        testMath();
        testCollections();
        testWrappers();
    }

private static void testMath() {
        System.out.println("=== Math ===");
        System.out.println("abs(-10): " + Math.abs(-10));
        System.out.println("max(10, 20): " + Math.max(10, 20));
        System.out.println("min(10, 20): " + Math.min(10, 20));
        System.out.println("sqrt(16.0): " + Math.sqrt(16.0));
        System.out.println("pow(2.0, 3.0): " + Math.pow(2.0, 3.0));
        System.out.println("round(3.6): " + Math.round(3.6));
        System.out.println("ceil(3.2): " + Math.ceil(3.2));
        System.out.println("floor(3.8): " + Math.floor(3.8));
    }

private static void testCollections() {
        System.out.println("\n=== LinkedList ===");
        LinkedList list = new LinkedList();
        list.add("First");
        list.addLast("Last");
        list.addFirst("New First");
        System.out.println("List size: " + list.size());
        System.out.println("First: " + list.getFirst());
        System.out.println("Last: " + list.getLast());
        System.out.println("Get(1): " + list.get(1));
        
        System.out.println("\n=== TreeSet ===");
        TreeSet set = new TreeSet();
        set.add(10);
        set.add(5);
        set.add(20);
        set.add(10); // Duplicate
        System.out.println("Set size: " + set.size());
        System.out.println("Contains 10: " + set.contains(10));
        System.out.println("Contains 99: " + set.contains(99));
        
        System.out.print("Elements via get(): ");
        for (int i = 0; i < set.size(); i++) {
            System.out.print(set.get(i) + " ");
        }
        System.out.println();
    }

private static void testWrappers() {
        System.out.println("\n=== Wrappers ===");
        int i = Integer.parseInt("123");
        System.out.println("Integer.parseInt: " + i);
        
        double d = Double.parseDouble("123.45");
        System.out.println("Double.parseDouble: " + d);
        
        boolean b = Boolean.parseBoolean("true");
        System.out.println("Boolean.parseBoolean: " + b);
        
        System.out.println("Character.isDigit('9'): " + Character.isDigit('9'));
        System.out.println("Character.isLetter('A'): " + Character.isLetter('A'));
        System.out.println("Character.toLowerCase('A'): " + Character.toLowerCase('A'));
    }
}

ready