Add files via upload

Author: misskalyani

Byte Stream Class/File2.java

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+//display file data
+import java.io.*;
+class demo
+{
+	public static void main(String a[])
+	{
+		try
+		{
+			FileInputStream f1=new FileInputStream("abc.txt");
+			int k;
+			while(true)
+			{
+				k=f1.read();
+				if(k==-1)
+				break;
+				System.out.print((char)k);
+			}
+			f1.close();
+		}
+		catch(Exception e)
+		{
+			System.out.println(e);
+		}
+	}
+}

Byte Stream Class/abc.txt

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+hiii kalyani

Byte Stream Class/copy.java

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+import java.io.*;
+class demo
+{
+	public static void main(String ar[])throws Exception
+	{
+		FileInputStream f1=new FileInputStream("abc.txt");
+		FileOutputStream f2=new FileOutputStream("std.txt");
+		int k;
+		while((k=f1.read())!=-1)
+		{
+			f2.write(k);
+		}
+		f1.close();
+		f2.close();
+		System.out.println("File copy Succesfulyy.....");
+	}
+}

Byte Stream Class/create.java

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+import java.io.*;
+import java.util.*;
+class demo
+{
+	public static void main(String ar[])throws Exception
+	{
+		Scanner sc=new Scanner(System.in);
+		System.out.println("Enter Data");
+		String s=sc.nextLine();
+		FileOutputStream f2=new FileOutputStream("abc.txt");
+		for(int i=0;i<s.length();i++)
+		{
+		  char ch=s.charAt(i);
+			f2.write(ch);
+		}
+		f2.close();
+		System.out.println("File Created Successfully...");
+	}
+}

Byte Stream Class/file.java

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+//dispaly file data
+import java.io.*;
+class file
+{
+	public static void main(String ar[])
+	{
+		try
+		{
+		FileInputStream f1=new FileInputStream("abc.txt");
+		int k;
+		while((k=f1.read())!=-1)
+		{
+			System.out.print((char)k);
+		}
+		f1.close();
+		}
+		catch(Exception e)
+		{
+			System.out.println(e);
+		}
+	}
+}
+
+
+
+	 

Byte Stream Class/file3.java

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+//Create File Enter Values
+import java.io.*;
+class demo
+{
+	public static void main(String ar[]) throws Exception
+	{
+		FileOutputStream f1=new FileOutputStream("pqr.txt");
+		int k;
+		System.out.println("Enter Data upto ctrl+z");
+		while((k=System.in.read())!=-1)
+		{
+		  f1.write(k);
+		}
+		f1.close();
+		System.out.println("File Copy Successfulyy....");
+	}
+}

Byte Stream Class/file5.java

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+import java.io.*;
+import java.util.Scanner;
+class demo
+{
+	public static void main(String ar[]) throws Exception
+	{
+		Scanner sc=new Scanner(System.in);
+		System.out.println("enter data ");
+		String s=sc.nextLine();
+		FileOutputStream f=new FileOutputStream("pqr.txt");
+		for(int i=0;i<s.length();i++)
+		{
+			int ch=s.charAt(i);
+			f.write(ch);
+		}
+		f.close();
+	}
+}

Byte Stream Class/filecount.java

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+//count number of digits ,spaces,characters from a file
+import java.io.*;
+
+class demo
+{
+  public static void main(String ar[]) throws Exception
+  {
+    FileInputStream f1=new FileInputStream("pqr.txt");
+    
+    int k,d=0,ch=0,sp=0,sym=0;
+    while(true)
+    {
+      k=f1.read();
+      if(k==-1)
+        break;
+      if((k>='A'  && k<='Z')  ||( k>='a' && k<='z'))  
+        ch++;
+      if(k>=0 && k<=9)
+        d++;
+      if(k==' ')
+        sp++;
+      else
+        sym++;
+    }
+    System.out.println("No Of Digits = "+d);
+     System.out.println("No Of Character = "+ch);
+      System.out.println("No Of Symblos = "+sym);
+       System.out.println("No Of Spaces = "+sp);
+  }
+}

Byte Stream Class/pqr.txt

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+kalyani
+amuuu
+abc
+hii
+hello
+hii 

Byte Stream Class/replace.java

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+import java.io.*;
+class demo
+{
+	public static void main(String ar[])throws Exception
+	{
+		FileInputStream f1=new FileInputStream("abc.txt");
+		FileOutputStream f2=new FileOutputStream("std.txt");
+		
+		int k;
+		while((k=f1.read())!=-1)
+		{
+			if(Character.isUpperCase(k))
+				f2.write(Character.toLowerCase(k));
+			else if(Character.isLowerCase(k))
+				f2.write(Character.toUpperCase(k));
+			else if(Character.isDigit(k))
+				f2.write('*');
+			else
+				f2.write(k);
+		}
+		f1.close();
+		f2.close();
+		System.out.println("File Copy Succ......");
+	}
+}