source file name:  mathdemo3.java class mathdemo3 { public static void main(String as[]) { System.out.println("power values  of 2 base program "); for(int b=1;b<=10;b++) System.out.println(" 2 raised to "+b+" is: "+Math.pow(2,b)); } } output: D:\JavaPrograms\Misc>javac mathdemo3.jav…

source file name:  strtokendemo.java import java.util.*; import java.text.*; class strtokendemo { public static void main(String as[]) { System.out.println("String Tokenizer class program"); String s="123.50 2.5 l6.3f 520 10.4 10l.25f 10.2505"; System.out.println(" list of tokens: "); St…

source file name: enumdemo.java import java.util.*; class enumdemo { public static void main(String as[]) { System.out.println("Vector demo program"); Vector v=new Vector(); Object ob;  for(int i=0;i<as.length;i++)  {  ob=new String(as[i]);  v.add(ob);  } System.out.println("vector v="+v); Stri…

source file name:  vectordemo1.java import java.util.*; class vectordemo1 { public static void main(String as[]) { System.out.println("vector demo program"); Vector v1=new Vector(); String s1="one"; String s2="two"; Integer il=new Integer(100); Float f=new Float(2.53f); v1.add(s1); v1.ad…

source file name: matrix.java   import java.io.*; import java.util.*; public class matrix {       public static void main(String[]args)throws IOException{            int[][]dim=new int[2][2]; BufferedReader stdin=new BufferedReader(new InputStreamReader(System.in));        System.out.println("Enter the rows of ma…

source file name:  ReverseDemo1.java import java.io.*; class ReverseDemo1 { public static void main(String args[]) throws IOException { String str=""; try { DataInputStream dis=new DataInputStream(System.in); System.out.println("enter any string "); str=dis.readLine(); } catch(Exception e) { Syste…