lab1

DataLabs/lab1/Box.java

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+public class Box<T> {
+
+    private T t;
+
+    public void set(T t){
+        this.t = t;
+    }
+
+    public T get(){
+        return t;
+}
+
+    public String printContents(){
+        return t.toString();
+    }
+
+}

DataLabs/lab1/Tuple.java

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+public class Tuple<T1, T2, T3> {
+
+    private T1 item1;
+    private T2 item2;
+    private T3 item3;
+
+    public Tuple(T1 item1, T2 item2, T3 item3){
+        this.item1 = item1;
+        this.item2 = item2;
+        this.item3 = item3;
+    }
+
+    public T1 getItem1(){
+        return item1;
+    }
+
+    public T2 getItem2(){
+        return item2;
+    }
+
+    public T3 getItem3(){
+        return item3;
+    }
+
+
+    public void setItem1(T1 item1) {
+        this.item1 = item1;
+    }
+
+    public void setItem2(T2 item2) {
+        this.item2 = item2;
+    }
+
+    public void setItem3(T3 item3) {
+        this.item3 = item3;
+    }
+
+    public String toString() {
+        return "item1" + item1 + "item2" + item2 + "item3" + item3;
+    }
+
+}

DataLabs/lab1/TupleDemo.java

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+public class TupleDemo {
+
+    public static void main(String[] args) {
+
+
+        Tuple <String, Integer, String> personTuple = new Tuple("John Doe", 21, "CS student");
+        Tuple <String, Double, Boolean> itemTuple = new Tuple("Tablet", 13123, 1);
+
+        System.out.println(personTuple.getItem1() + personTuple.getItem2() + personTuple.getItem3());
+   }
+}

DataLabs/lab1/demoSwap.java

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+public class demoSwap{
+
+    public static void main(String[] main) {
+        Integer[] intArray = {1, 2, 3, 4, 5};
+        swap.swap(intArray, 1, 3);
+        System.out.print("New array: ");
+        swap.printArray(intArray);
+    }
+}

DataLabs/lab1/swap.java

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+public class swap {
+
+    public static <T> void swap(T[] array, int i1, int i2) {
+
+        T temp = array[i1];
+        array[i1] = array[i2];
+        array[i2] = temp;
+    }
+
+    public static <T> void printArray(T[] array) {
+        for (T element: array) {
+            System.out.print(element + " ");
+        }
+            System.out.println();
+    }
+}