Abhinav shet day1

src/HierarchicalI.java

@@ -0,0 +1,16 @@
+class Animal2{
+    void eat(){System.out.println("eating...");}
+}
+class Dog2 extends Animal2{
+    void bark(){System.out.println("barking...");}
+}
+class Cat extends Animal2{
+    void meow(){System.out.println("meowing...");}
+}
+public class HierarchicalI {
+    public static void main(String args[]){
+        Cat c=new Cat();
+        c.meow();
+        c.eat();
+//c.bark();//C.T.Error
+    }}

src/LocalGlobalScope.java

@@ -0,0 +1,21 @@
+public class LocalGlobalScope {
+    static int x = 11;
+    private int y = 33;
+    public void method1(int x)
+    {
+        LocalGlobalScope t = new LocalGlobalScope();
+        this.x = 22;
+        y = 44;
+
+        System.out.println("Test.x: " + LocalGlobalScope.x);
+        System.out.println("t.x: " + t.x);
+        System.out.println("t.y: " + t.y);
+        System.out.println("y: " + y);
+    }
+
+    public static void main(String args[])
+    {
+        LocalGlobalScope t = new LocalGlobalScope();
+        t.method1(5);
+    }
+}

src/Main.java

@@ -1,5 +1,5 @@
 public class Main {
     public static void main(String[] args) {
-        System.out.println("Hello world!");
+        System.out.println("Hello Abhinav!");
     }
 }

src/MinMaxValue.java

@@ -0,0 +1,27 @@
+public class MinMaxValue {
+    public static void main(String args[])
+    {
+        System.out.println(
+                "S.No.\t  Data Type\t  Size\t  Min. Value\t\t  Max. Value\t");
+        System.out.println("1\t  Byte\t\t" + Byte.SIZE
+                + "\t" + Byte.MIN_VALUE
+                + "\t\t\t" + Byte.MAX_VALUE);
+        System.out.println("2\t  Short\t\t" + Short.SIZE
+                + "\t" + Short.MIN_VALUE
+                + "\t\t\t" + Short.MAX_VALUE);
+        System.out.println("3\t  Integer\t" + Integer.SIZE
+                + "\t" + Integer.MIN_VALUE
+                + "\t\t" + Integer.MAX_VALUE);
+        System.out.println("4\t  Float\t\t" + Float.SIZE
+                + "\t" + Float.MIN_VALUE
+                + "\t\t\t" + Float.MAX_VALUE);
+        System.out.println("5\t  Long\t\t" + Long.SIZE
+                + "\t" + Long.MIN_VALUE + "\t"
+                + Long.MAX_VALUE);
+        System.out.println("6\t  Double\t" + Double.SIZE
+                + "\t" + Double.MIN_VALUE
+                + "\t\t" + Short.MAX_VALUE);
+        System.out.println("7\t  Character\t"
+                + Character.SIZE);
+    }
+}

src/MultilevelInheritance.java

@@ -0,0 +1,16 @@
+class Animal1{
+    void eat(){System.out.println("eating...");}
+}
+class Dog1 extends Animal1{
+    void bark(){System.out.println("barking...");}
+}
+class BabyDog extends Dog1{
+    void weep(){System.out.println("weeping...");}
+}
+public class MultilevelInheritance {
+    public static void main(String args[]){
+        BabyDog d=new BabyDog();
+        d.weep();
+        d.bark();
+        d.eat();
+    }}

src/StackandHeap.java

@@ -0,0 +1,22 @@
+class Emp {
+    int id;
+    String emp_name;
+
+    public Emp(int id, String emp_name) {
+        this.id = id;
+        this.emp_name = emp_name;
+    }
+}
+
+public class StackandHeap {
+    private static Emp StackandHeap(int id, String emp_name) {
+        return new Emp(id, emp_name);
+    }
+
+    public static void main(String[] args) {
+        int id = 21;
+        String name = "Maddy";
+        Emp person_ = null;
+        person_ = StackandHeap(id, name);
+    }
+}

src/array.java

@@ -0,0 +1,13 @@
+public class array {
+    public static void main(String args[]){
+        int a[]=new int[5];//declaration and instantiation
+        a[0]=10;//initialization
+        a[1]=20;
+        a[2]=70;
+        a[3]=40;
+        a[4]=50;
+//traversing array
+        for(int i=0;i<a.length;i++)//length is the property of array
+            System.out.println(a[i]);
+    }}
+

src/contructor.java

@@ -0,0 +1,20 @@
+public class contructor {
+    int id;
+    String name;
+    //creating a parameterized constructor
+    contructor(int i,String n){
+        id = i;
+        name = n;
+    }
+    //method to display the values
+    void display(){System.out.println(id+" "+name);}
+
+    public static void main(String args[]){
+        //creating objects and passing values
+        contructor s1 = new contructor(111,"Karan");
+        contructor s2 = new contructor(222,"Aryan");
+        //calling method to display the values of object
+        s1.display();
+        s2.display();
+    }
+}

src/defaultValue.java

@@ -0,0 +1,18 @@
+public class defaultValue {
+    static byte a;
+    static short b;
+    static char c;
+    static float d;
+    static double e;
+    static boolean f;
+
+    public static void main(String[] args) {
+
+        System.out.println("Default value of byte Type = " +a);
+        System.out.println("Default value of short Type = " +b);
+        System.out.println("Default value of char Type = " +c);
+        System.out.println("Default value of float type = " +d);
+        System.out.println("Default value of double Type = " +e);
+        System.out.println("Default value of boolean Type = " +f);
+    }
+}

src/inheritance.java

@@ -0,0 +1,11 @@
+class Employee{
+    float salary=40000;
+}
+class Programmer extends Employee{
+    int bonus=10000;
+    public static void main(String args[]){
+        Programmer p=new Programmer();
+        System.out.println("Programmer salary is:"+p.salary);
+        System.out.println("Bonus of Programmer is:"+p.bonus);
+    }
+}