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Author: sundramsinghdev007

Practice/Armstrong.java

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+import java.util.*;
+class Armstrong
+{
+ public static void main(String [] args)
+{
+ Scanner s=new Scanner(System.in);
+ int arm=0,a,b,c,d,no;
+ System.out.println("Enter the no:");
+ no=s.nextInt();
+  d=no;
+  while(no>0)
+  {
+    a=no%10;
+   no=no/10;
+   arm=arm+a*a*a;
+ }
+  if(arm==d)
+{
+  System.out.println("Armstrong No is="+arm);
+}
+else
+{
+ System.out.println("No is not armstrong");
+}
+}
+}

Practice/Cons.java

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+class Cons
+{
+	Cons(int i){System.out.println(""+i);}
+	Cons(int a,String str){System.out.println(""+a);System.out.println(""+str);}
+	public static void main(String[] args)
+	{
+		
+		Cons t1=new Cons(10);
+		Cons t2=new Cons(20,Sundram);
+	}
+}

Practice/Cuboid.java

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+import java.util.Scanner;
+class Cuboid
+{
+ public static void main(String [] args)
+{
+ Scanner s=new Scanner(System.in);
+ int l,b,h,v,sa;
+ System.out.println("Enter The Lenght");
+ l=s.nextInt();
+System.out.println("Enter The Breadth");
+ b=s.nextInt();
+System.out.println("Enter The height");
+ h=s.nextInt();
+ v=l*b*h;
+ sa=2*(l*b+b*h+h*l);
+ System.out.println("Volume:"+v);
+ System.out.println("Surface Area:"+sa);
+}
+}

Practice/Reverse.java

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+//Wap in java to print numbers in reverse order
+class Reverse
+{
+public static void main(String [] args)
+{
+int i=100;
+do
+         {
+             System.out.print(i+"\t");
+            i--;
+           }
+while(i>0);
+}
+}

Practice/array.java

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+//Wap a pprtogram to print the table of given number using array.
+
+import java.util.*;
+class array
+{
+  public static void main(String [] args)
+  {
+    int n,i;
+    int [] tab = new int[10];
+    Scanner sc = new Scanner(System.in);
+    System.out.print("Enter a number to print table:"); 
+    n=sc.nextInt();
+    int index=0;
+    for(i=1;i<=10;i++)
+    {
+       tab[index]=n*i;
+        index++; 
+     }
+       for(int r:tab)
+        {
+           System.out.println(n+"*"+i+"="+r);
+         }
+   }
+
+}

Practice/asc.java

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+/* Wap to store 4 name of your friends into the array and display them in ascending order*/
+import java.util.*;
+class asc
+{
+  static public void main(String... args)
+  {
+    Scanner sc= new Scanner(System.in);
+    String [] names=new String[5];
+    int i;
+    System.out.println("Enter 5 names of your friends");
+    for(i=0;i<5;i++)
+    {
+      names[i]=sc.nextLine(); 
+     }
+       Arrays.sort(names); //Sort array elements in asc order;
+      
+      for( String a:names)
+      {
+        System.out.println("names:"+a);
+  }
+}
+}
+/*dsc collections.reverse(array_name) it applicable for array list it is the class in collection framework*/

Practice/converse.java

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+class Converse
+{
+	static void m1(int[] a)
+	{
+		for(int a1:a)
+		System.out.println(a1);
+	}
+	static int[] m2()
+	{
+		System.out.println("m1 return");
+		return new int[]{100,200,300,400};
+	}
+	public static void main(String[] args)
+	{
+		Converse.m1(new int[]{10,20,30,40});
+		int[] x=Converse.m2();
+		for(int x1:x)
+		System.out.println(x1);
+	}
+}

Practice/dowhile.java

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+//Wap in java to print numbers in reverse order
+class Reverse
+{
+public static void main(String [] args)
+  {
+    int i=100;
+    do
+         {
+             System.out.println(i+"\t");
+            i--;
+           }
+       while(i>o);
+  }
+}

Practice/fibonacci.java

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+/*Fibonacci Series 
+0 1 1 2 3 5.......................... */
+
+import java.util.*;
+class FS
+{
+ public static void main(String [] args)
+ {
+  int t1=0,t2=1,t3,i,n;   
+  Scanner s=new Scanner(System.in);
+  System.out.print("How many terms you want in series ?");
+  n=s.nextInt(); 
+  System.out.print(t1+"\t"+t2+'\t');
+  for(i=1;i<=n-2;i++)
+  {
+   t3=t1+t2;
+  System.out.print(t3+"\t");
+  t1=t2;
+  t2=t3;
+  }
+}
+}

Practice/function.java

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+/*Function:-The function is a named block of code which perform specific task.
+Advantage:
+--__--__--__
+By using function you can avoid to write same code over and over........
+
+How to define function in JAVA:-In java we give the definition of function inside a class.
+Modifiers in Java:-
+---------------------------
+private---------------
+public                  ! //these are the access modifier
+protected -----------       
+ static
+final 
+abstract
+native
+strictfp
+transient
+synchronised
+volatile.
+---------------------------------------------------------------------------------------
+SYNTAX OF FUNCTION:
+---------------------------------
+Modifier return_type function_name(parameters)
+{
+//code;
+}
+static int add(int a,int b)
+{
+return(a+b);
+}
+*/
+//Wap to demonstrate concept of function
+class FunDemo
+{
+   void sayhello();
+  {
+    System.out.print("Hello");
+   }
+  public static void main(String... args)
+  {
+    new FunDemo.sayhello();
+  }
+}
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