Add files via upload

Author: prasadbylapudi

String_functions/src/string1.java

@@ -0,0 +1,17 @@
+class string
+{
+public static void main(String ar[])
+{
+String s="hello";
+String s1=new String();
+s1="Hello";
+String s2=new String("HELLO");
+char a[]={'H','e','l','l','o','w'};
+String s3=new String(a);
+System.out.println(s);
+System.out.println(s1);
+System.out.println(s2);
+System.out.println(s3);
+}
+}
+

String_functions/src/string_buffer.java

@@ -0,0 +1,24 @@
+import java.util.*;
+class buffer
+{
+public static void main(String ar[])
+{
+System.out.print("Enter a String:");
+Scanner  a=new Scanner(System.in);
+String s=a.nextLine();
+StringTokenizer b=new StringTokenizer(s, ",_");
+int n=b.countTokens();
+System.out.println("No.of tokens="+n);
+boolean c=b.hasMoreTokens();
+System.out.println(c);
+StringBuffer d=new StringBuffer(s);
+System.out.println(d.charAt(2)); 
+System.out.println(d.capacity());
+System.out.println(d.length());
+System.out.println(d.append("eng-2"));
+System.out.println(d.reverse());
+System.out.println(d.insert(7,"suma"));
+System.out.println(d.replace(4,5,"rama"));
+System.out.println(d.delete(3,5));
+}
+}

String_functions/src/string_equal.java

@@ -0,0 +1,11 @@
+class equal
+{
+public static void main(String ar[])
+{
+String s1="Uma";
+String s2="uma";
+boolean n=s1.equals(s2);
+System.out.println(n);
+System.out.print(s1.equalsIgnoreCase(s2));
+}
+}

String_functions/src/string_fun.java

@@ -0,0 +1,21 @@
+import java.util.*;
+class string_fun
+{
+public static void main(String ar[])
+{
+System.out.print("Enter a String:");
+Scanner a=new Scanner(System.in);
+String s=a.nextLine();
+System.out.println(s.substring(2,4));
+System.out.println(s.substring(2));
+System.out.println(s.toUpperCase());
+System.out.println(s.toLowerCase());
+System.out.println(s.replace("amma","Amma"));
+System.out.println(s.replace('a','A'));
+System.out.println(s.replaceAll("a","A"));
+System.out.println(s.indexOf('m'));
+System.out.println(s.lastIndexOf('m'));
+System.out.println(s.charAt(5));
+System.out.println(s.replaceFirst("a","A"));
+}
+}

String_functions/src/string_input.java

@@ -0,0 +1,11 @@
+import java.util.*;
+class string_input
+{
+public static void main(String ar[])
+{
+System.out.print("enter a String:");
+Scanner s=new Scanner(System.in);
+String s1=s.nextLine();
+System.out.print("Entered string is:"+s1);
+}
+}

String_functions/src/string_length.java

@@ -0,0 +1,9 @@
+class length
+{
+public static void main(String ar[])
+{
+String s1=ar[0];
+int n=s1.length();
+System.out.print("length of the string:"+n);
+}
+}

String_functions/src/string_reverse.java

@@ -0,0 +1,17 @@
+import java.util.*;
+class reverse
+{
+public static void main(String ar[])
+{
+System.out.print("Enter a string:");
+Scanner a=new Scanner(System.in);
+String s=a.nextLine();
+int l=s.length();
+System.out.print("reversed String is:");
+for(int i=(l-1);i>=0;i--)
+{
+char d=s.charAt(i);
+System.out.print(d);
+}
+}
+}