Thread program with try catch in core java example

public class Ar {     public static void main(String[] args)     {         new x();         try         {             for (int i = 5; i > 0; i--)             {                 System.out.print("main thread" + i);                 Thread.sleep(1000);             }         } catch (InterruptedException e)         {             System.out.print(e);         }     } }

Inheritance program in java

class a {     void fun()     {         System.out.println("hell0");     } } class b extends a {     void fun()     {         System.out.println("bye");     } } class c extends b {     void fun()     {         System.out.println("say no");     } } class hello {     public static void main(String arg[])     {         a c = new b(); //a r;         a a = new b();         b b = new b(); //r=a; //r.fun(); //r=b;         b.fun();         c.fun();     } }

Java program try catch example

class ex {     public static void main(String arg[])     {         try         {             int a = arg.length;             System.out.println("a=" + a);             int b = 25 / a;             int c[] = {1};             c[20] = 50;         } catch (ArithmeticException e)         {             System.out.println("exception " + e.getMessage());         } catch (ArrayIndexOutOfBoundsm Exception e)         {             System.out.println("exception " + e);         }     } }

C# program small application create in netbean

using System;     using System.Collections.Generic;         using System.ComponentModel;         using System.Data;         using System.Drawing;         using System.Linq;         using System.Text;         using System.Windows.Forms;         namespace groupbox         {         publicpartialclassForm1:Form         { public Form1()         {         InitializeComponent();         }         privatevoid checkBox5_CheckedChanged(object sender,         EventArgs e)         {         if(checkBox5.Checked)         {         groupBox1.Visible=true;         button1.Visible=true;         checkedListBox1.Visible=true;         button2.Visible=true;         }         else         {         groupBox1.Visible=false;         button1.Visible=false;         checkedListBox1.Visible=false;         button2.Visible=false;         }         }         privatevoid button1_Click(object sender,EventArgs e)         {         String str="";         if(checkBox1.Checked)         {         str+=checkBox1.Text+"\n";         }         if(checkBox2.Checked)         {         str+=checkBox2.Text+"\n";         }         if(checkBox3.Checked)         {         str+=checkBox3.Text+"\n";         }         if(checkBox4.Checked)         {         str+=checkBox4.Text+"\n";         }         MessageBox.Show(str);         }         privatevoid button2_Click(object sender,EventArgs e)         {         String str="";         CheckedListBox.CheckedItemCollection con=checkedListBox1.CheckedItems;         for(int i=0;i<con.Count;i++)         {         str+=con[i].ToString()+",";         }         if(str!="")         {         str=str.Substring(0,str.Length-1);         MessageBox.Show(str);         }         }         }         }

Create java program of simple array

1.create file in notepad with dd.java



 output