Generate a Pattern-7
1a2b
3c4d
5e6f
7g8h
package javaapplication1;
import java.util.*;
class pat9 {
public static void main(String args[]) {
Scanner sc = new Scanner(System.in);
int i, j, k = 1;
char c = 97;
for (i = 1; i <= 4; i++) {
for (j = 1; j <= 4; j++) {
if (j % 2 == 0) {
System.out.print(c);
c++;
} else {
System.out.print(k);
k++;
}
}
System.out.println();
}
}
}
Generate a Pattern-6
1
1 1
1 1 1
1 1 1 1
package javaapplication1;
import java.util.*;
class pat8 {
public static void main(String args[]) {
Scanner sc = new Scanner(System.in);
int i, j, k;
for (i = 1; i <= 4; i++) {
for (j = 1; j <= 5 - i; j++) {
System.out.print(" ");
}
for (k = 1; k <= i; k++) {
System.out.print(" 1");
}
System.out.println();
}
}
}
Generate a Pattern-5
A
AB
ABC
ABCD
package javaapplication1;
import java.util.*;
class pat4
{
public static void main(String aegs[])
{
Scanner sc = new Scanner(System.in);
char i, j;
for(i=65;i<=68;i++)
{
for(j=65;j<=i;j++)
{
System.out.print(j);
}
System.out.println();
}
}
}
Generate a Pattern-4
1010
1010
1010
1010
package javaapplication1;
import java.util.*;
class pat3 {
public static void main(String args[]) {
Scanner sc = new Scanner(System.in);
int i, j;
for (i = 1; i <= 4; i++) {
for (j = 1; j <= 4; j++) {
if (j % 2 == 0) {
System.out.print(0);
} else {
System.out.print(1);
}
}
//System.out.print(i);
System.out.println();
}
}
}
Generate a Pattern-3
1
12
123
1234
import java.util.*;
class pat2 {
public static void main(String args[]) {
Scanner sc = new Scanner(System.in);
int i, j;
for (i = 1; i <= 4; i++) {
for (j = 1; j <= i; j++) {
System.out.print(j);
}
//System.out.print(i);
System.out.println();
}
}
}
Generate a Pattern-2
1
212
32123
4321234
package javaapplication1;
import java.util.*;
class pat10
{
public static void main(String args[])
{
Scanner sc=new Scanner(System.in);
int i,j,k,l;
for(i=1;i<=4;i++)
{
for(j=1;j<=5-i;j++)
{
System.out.print(" ");
}
for(k=i;k>=1;k--)
{
System.out.print(k);
}
for(l=2;l<=i;l++)
{
System.out.print(l);
}
System.out.println();
}
}
}
Generate a Pattern-1
1234
1234
1234
import java.util.*;
class pat1 {
public static void main(String args[]) {
Scanner sc = new Scanner(System.in);
int i, j;
for (i = 1; i <= 4; i++) {
for (j = 1; j <= 4; j++) {
System.out.print(j);
}
//System.out.print(i);
System.out.println();
}
}
}
Array:Sum the number of value enter by user using Array
import java.util.*;
class a46
{
public static void main(String args[])
{
Scanner sc= new Scanner (System.in);
int sum=0, i ,a[] = new int[5];
for(i=0 ; i<a.length;i++)
{
System.out.println("enter the array value");
a[i] =sc.nextInt();
}
for(i=0 ; i<a.length;i++)
{
if (i%2!=0)
{
if(a[i]%2==0)
{
sum = sum+ 1;
}
}
}
System.out.println(sum);
}
}
Find Factorial
import java.util.*;
class fact
{
public static void main(String args[])
{
Scanner sc=new Scanner(System.in);
int f,n;
System.out.println("enter no");
n=sc.nextInt();
f=1;
for(int i=1;i<=n;i++)
{
f=f*i;
}
System.out.println("factorial"+f);
}
}
Applet:Print Hello With Font Color Blue
import java.applet.*;
import java.awt.*;
import java.awt.event.*;
/*
<applet code="HelloC" width="250" height="250" > </applet>
*/
public class HelloC extends Applet
{
public void paint(Graphics n)
{
Color c=new Color(255,0,0);
n.setColor(c);
n.drawString("hy ...!",40,40);
n.drawString("I m Parth.",40,60);
n.drawString("I m Parth.P.Chavda",40,80);
}
}
Applet:How to use button Action with TextField
import java.awt.*;
import java.awt.event.*;
import java.applet.*;
/*
<applet code="ButtonAT" height=250 width=250>
</applet>
*/
public class ButtonAT extends Applet implements ActionListener
{
Button b1,b2,b3;
TextField t1,t2,t3;
String msg="";
public void init()
{
setLayout(null);
b1=new Button ("b1");
b2=new Button ("b2");
b3=new Button ("b3");
t1=new TextField(" ");
t2=new TextField(" ");
t3=new TextField(" ");
b1.setBounds(10,20,50,20);
add(b1);
b2.setBounds(10,45,50,20);
add(b2);
b3.setBounds(10,70,50,20);
add(b3);
t1.setBounds(70,20,90,20);
add(t1);
t2.setBounds(70,45,90,20);
add(t2);
t3.setBounds(70,70,90,20);
add(t3);
b1.addActionListener(this);
b2.addActionListener(this);
b3.addActionListener(this);
}
public void actionPerformed(ActionEvent ae)
{
String s=(String)ae.getActionCommand();
if (s.equals("b1") )
{
t1.setText("This is b1");
}
if (s.equals("b2") )
{
t2.setText("This is b2");
}
if (s.equals("b3") )
{
t3.setText("This is b3");
}
repaint();
}
public void paint(Graphics g)
{
g.drawString(msg,60,105);
}
}
Applet:how to use button action
import java.awt.*;
import java.awt.event.*;
import java.applet.*;
/*
<applet code="ButtonAct" height=400 width=400>
</applet>
*/
public class ButtonAct extends Applet implements ActionListener
{
Button b1,b2,b3;
String msg="";
public void init()
{
setLayout(null);
b1=new Button ("b1");
b2=new Button ("b2");
b3=new Button ("b3");
b1.setBounds(10,20,50,20);
add(b1);
b2.setBounds(10,45,50,20);
add(b2);
b3.setBounds(10,70,50,20);
add(b3);
b1.addActionListener(this);
b2.addActionListener(this);
b3.addActionListener(this);
}
public void actionPerformed(ActionEvent ae)
{
String s=(String)ae.getActionCommand();
if (s.equals("b1") )
{
msg = "10000";
}
if (s.equals("b2") )
{
msg="2000" ;
}
if (s.equals("b3") )
{
msg ="3000";
}
repaint();
}
public void paint(Graphics g)
{
g.drawString(msg,60,105);
}
}
Applet:Arc
import java.applet.*;
import java.awt.*;
import java.awt.event.*;
/* <applet code="ArcE" width="160" height="250" > </applet> */
public class ArcE extends Applet
{
public void paint(Graphics g)
{
g.drawOval(20,20,120,60);
Color c=new Color(0,0,250);
g.setColor(c);
g.fillArc(20,20,120,60,0,60);
c=new Color(0,250,0);
g.setColor(c);
g.fillArc(20,20,120,60,60,60);
c=new Color(0,0,250);
g.setColor(c);
g.fillArc(20,20,120,60,120,60);
c=new Color(0,250,0);
g.setColor(c);
g.fillArc(20,20,120,60,180,60);
c=new Color(0,0,250);
g.setColor(c);
g.fillArc(20,20,120,60,240,60);
c=new Color(0,250,0);
g.setColor(c);
g.fillArc(20,20,120,60,300,60);
c=new Color(250,0,0);
g.setColor(c);
g.drawLine(0,90,250,90);
c=new Color(0,0,0);
g.setColor(c);
g.drawOval(20,100,120,60);
c=new Color(0,250,0);
g.setColor(c);
g.fillArc(20,100,120,60,0,60);
c=new Color(0,0,250);
g.setColor(c);
g.fillArc(20,100,120,60,60,60);
c=new Color(0,250,0);
g.setColor(c);
g.fillArc(20,100,120,60,120,60);
c=new Color(0,0,250);
g.setColor(c);
g.fillArc(20,100,120,60,180,60);
c=new Color(0,250,0);
g.setColor(c);
g.fillArc(20,100,120,60,240,60);
c=new Color(0,0,250);
g.setColor(c);
g.fillArc(20,100,120,60,300,60);
c=new Color(250,0,0);
g.setColor(c);
g.drawLine(0,170,250,170);
g.drawOval(20,180,120,60);
c=new Color(0,0,250);
g.setColor(c);
g.fillArc(20,180,120,60,0,60);
c=new Color(0,250,0);
g.setColor(c);
g.fillArc(20,180,120,60,60,60);
c=new Color(0,0,250);
g.setColor(c);
g.fillArc(20,180,120,60,120,60);
c=new Color(0,250,0);
g.setColor(c);
g.fillArc(20,180,120,60,180,60);
c=new Color(0,0,250);
g.setColor(c);
g.fillArc(20,180,120,60,240,60);
c=new Color(0,250,0);
g.setColor(c);
g.fillArc(20,180,120,60,300,60);
c=new Color(250,0,0);
g.setColor(c);
g.drawLine(0,245,250,245);
}
}
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