Slip 30 A)
Write a java program to accept a number from a user, if it is zero then throw
user defined Exception “Number is Zero”. If it is non-numeric then generate an
error “Number is Invalid” otherwise check whether it is palindrome or not.
Answer :
import java.io.*;
class Numberiszero extends Exception{}
class Slip30A{
public static void main( String args[]){
int r,sum=0,temp;
int n;
DataInputStream dr = new DataInputStream(System.in);
try {
System.out.print("Enter Number : ");
n = Integer.parseInt(dr.readLine());
if(n==0){
throw new Numberiszero();
}else{
temp=n;
while(n>0){
r=n%10;
sum=(sum*10)+r;
n=n/10;
}
if(temp==sum){
System.out.println("Palindrome Number ");
}else{
System.out.println("Not Palindrome");
}
}
} catch (Numberiszero nz) {
System.out.println("Number is Zero");
}
catch (NumberFormatException e){
System.out.println("Number is Invalid");
}
catch (Exception e){}
}
}
Output :
Slip 30 B) Write a java program to design a following GUI (Use Swing).
Answer :
import javax.swing.*;
import java.awt.*;
class Slip30B extends JFrame{
JLabel l1,l2,l3,l4,l5,l6;
JTextField t1,t2,t3,t4;
JButton b1,b2;
JRadioButton rb1, rb2;
JCheckBox ch1,ch2,ch3;
Panel p1,p2,p3,p4,p5,p6;
GridLayout g1,g2,g3,g4,g5,g6,g7;
JFrame jf;
public Slip30B(){
jf = new JFrame();
l1 = new JLabel("",JLabel.CENTER);
l1.setText("<HTML><U>Personal Information</U></HTML>");
p1 = new Panel();
g1 = new GridLayout(1,1);
p1.setLayout(g1);
p1.add(l1);
l1.setFont( new Font("Times New Roman",Font.BOLD,20));
l2 = new JLabel(" First Name : ");
t1 = new JTextField(30);
l3 = new JLabel(" Last Name : ");
t2 = new JTextField(30);
p2 = new Panel();
g2 = new GridLayout(2,1);
p2.setLayout(g2);
p2.add(l2);
p2.add(t1);
p2.add(l3);
p2.add(t2);
l4 = new JLabel(" Address : ");
t3 = new JTextField(30);
l5 = new JLabel(" Mobile Number : ");
t4 = new JTextField(30);
p3 = new Panel();
g3 = new GridLayout(2,1);
p3.setLayout(g3);
p3.add(l4);
p3.add(t3);
p3.add(l5);
p3.add(t4);
l5 = new JLabel(" Gender ");
rb1 = new JRadioButton("Male");
rb2 = new JRadioButton("Female");
ButtonGroup bg = new ButtonGroup();
bg.add(rb1);
bg.add(rb2);
p4 = new Panel();
g4 = new GridLayout(1,2);
p4.setLayout(g4);
p4.add(l5);
p4.add(rb1);
p4.add(rb2);
l6 = new JLabel(" Your Interests");
ch1 = new JCheckBox("Comuter");
ch2 = new JCheckBox("Sport");
ch3 = new JCheckBox("Music");
p5 = new Panel();
g5 = new GridLayout(1,2);
p5.setLayout(g5);
p5.add(l6);
p5.add(ch1);
p5.add(ch2);
p5.add(ch3);
b1 = new JButton("Submit");
b2 = new JButton("Reset");
p6 = new Panel();
g6 = new GridLayout(1,1,400,10);
p6.add(b1);
p6.add(b2);
this.setSize(500,250);
this.setVisible(true);
g7 = new GridLayout(6,1);
this.setLayout(g7);
this.add(p1);
this.add(p2);
this.add(p3);
this.add(p4);
this.add(p5);
this.add(p6);
}
public static void main(String args[]){
new Slip30B();
}
}
Output :
Reviewed by technical_saurabh
on
December 30, 2021
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