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import java.io.*; public class a { public static void main(String args[])throws Exception { String s ; int i=0; DataInputStream dd=new DataInputStream(System.in); System.out.println("Enter a string"); s=dd.readLine(); s=s.trim(); try {for(i=0;i>=0;i++) s.charAt(i); } catch(Exception e) { System.out.println("the length is : "+i); } } }

// count no. of words in java import java.io.*; public class a { public static void main(String args[])throws Exception { String s ; int i,count=0; DataInputStream dd=new DataInputStream(System.in); System.out.println("Enter a string"); s=dd.readLine(); s=s.trim(); s=s+" "; for(i=0;i<s.length();i++) if(s.charAt(i)== ' ') count+=1; System.out.println("the no.of words are: "+count); } }

// here we have used s1 and s2 images import java.awt.*; import java.awt.image.*; import java.io.*; import javax.imageio.*; import java.applet.*; import java.applet.Applet; /*<applet code="s" height=678 width=678></applet>   */ public class s extends Applet implements Runnable { int x=1; String un=""; Thread t; public void init() { t=new Thread(this); t.start(); } public void run() { try { while(true) { repaint(); t.sleep(500); } }catch(Exception e) { System.out.println(e); } } public void update(Graphics g) { paint(g); } public void paint(Graphics g) { Dimension d=getSize(); g.fillRect(0,0,d.width,d.height);   try { un="s"+x+".jpg";         g.drawImage(ImageIO.read(new File(un)), 0, 0, null); x+=1; if(x==3) x=1;        } catch (IOException e) { } } }

a[0][0]=1 a[1][0]=1 a[1][1]=1 for i= 1 to n-1 { for j=1 to i-1 a[i][0]=1 a[i][i]= 1 } for i = 0 to n -1 { for sp = n-1-i to 0 print a space for j= 0 to j=i print a[i][j] }

import java.awt.*; import java.awt.image.*; import java.io.*; import javax.imageio.*; import java.applet.Applet; /*<applet code="s" height=678 width=678></applet>   */ public class s extends Applet { public void paint(Graphics g) {   try {         g.drawImage(ImageIO.read(new File("s.jpg")), 0, 0, null); // s.jpg is the image file which is present in the same folder as the java file        } catch (IOException e) { } } }