Convert Uppercase to Lowercase using String in C

---

This program is about converting a string from uppercase to lowercase using for loop and if conditions without using any predefine functions.

Source Code

#include<stdio.h>
int main()
{
  int i;
  char a[100];
  printf("\nEnter the First String:");
  gets(a);
  printf("\nGiven First String:");
  puts(a);
  for(i=0;a[i]!='\0';i++)
  {
    if(a[i]>=65&&a[i]<=90)
    {
       a[i]+=32;
    }
  }
  printf("\nLower case Value is:%s",a);
  return 0;
}

To download raw file Click Here

Output

Enter the First String: TUTOR JOE'S
TUTOR JOE'S

Given First String:TUTOR JOE'S

Lower case Value is:tutor joe's

• Previous
• Next

---

List of Programs

---

• C Introduction
• Hello World
• Basic Addition
• Data Types in C
• Variables and Literals in C
• Arithmetic Operator in C
• Example for Arithmetic Operator in C
• Assignment Operators in C Program
• Relational Operators in C Program
• Logical Operators in C Program
• Increment and Decrement Operators in C Program
• Bitwise Operators in C Program
• if Statement in C Program
• if else Statement in C Program
• else if Statement in C Program
• Nested if Statement in C Program
• Switch Statement in C Program
• Conditional Operator Statement in C Program
• School Management in C Program
• Library Management in C Program
• Find the given number is odd or even in C Program
• Check the given number is vowels or not in C Program
• Check the given number is Armstrong or not in C Program
• Hotel Management in C Program
• Goto Statement in C Program
• Hotel Management using goto in C Program
• While Loop in C Program
• Do while Loop in C Program
• For Loop in C Program
• Nested For Loop in C Program
• Break and Continue Statement in C Program
• ASCII Values in C Program
• Single Dimensional Array in C Program
• 2D Array in C Program
• String Function in C Program
• Math Function in C Program
• Function in C Program
• No Return Without Argument Function in C Program
• No Return With Argument Function in C Program
• Return Without Argument Function in C Program
• Return With Argument Function in C Program
• Recursion Function in C Program
• Call by Reference Function in C Program
• Local Variable in C Program
• Global Variable in C Program
• Static Variable in C Program
• Enumeration or enum in C Program
• Single pointer in C Program
• Double & Triple pointer in C Program
• Pointer Arithmetic in C Program
• Pointer Handle Array Values in C Program
• Void * Pointer in C Program
• Malloc Function in C Program
• Calloc Function in C Program
• Realloc Function in C Program
• Free Function in C Program
• Dangling Pointer in C Program
• Using Const in Pointer in C Program
• Structure in C Program
• Local and Global Structure in C Program
• Typedef in C Program
• Initializing & Accessing the Structure Members in C Program
• Access members of structure using pointer in C Program
• Structure as function arguments in C Program
• Array of Objects Structure in C Program
• Union in C Program
• Shop Management using Structure and Union in C Program
• Input and output functions in C Program
• Preprocessor Directives in C Program
• Read File in C Program
• Write File in C Program
• Multiplication tables in C Program
• Total no of even and odd numbers in an array in C Program
• Count Alphabets Digits and Special Characters in a String in C Program
• Convert string to uppercase in C Program
• Convert string to lowercase in C Program
• Display Fibonacci Sequence in C Program
• Greatest of n numbers in an array in C Program

Sample Programs

---

Switch Case in C

• Present Elevator Position
• Check Vowel or Consonent
• Hotel Management using Swtich Case

---

Conditional Operators in C

• Find Greatest Number
• Check Find Smallest Number
• Check Number Equal or Not
• Check Char. Vowel or Consonent
• Check Character Capital or Small

---

Goto Statement in C

• Consecutive Numbers
• Print Text Using Goto
• Print Odd Numbers
• Printing Tables
• Printing Sum of Values
• Printing Reverse Table
• Print Factorial in C

---

While Loop Example Programs

• Print numbers using While Loop
• Armstrong Number using While Loop
• Print Odd and Even numbers
• Print Positive and Negative numbers
• Print Prime or Composite Number Upto Limit
• Print Prime or Composite Number
• Reverse table using While Loop
• Print table using While Loop
• Covert Decimal to Binary using While Loop

---

Looping Statements in C

For Loop Example Programs

• Print Value upto limit
• Print Number upto limit
• Armstrong Number using For Loop
• Square Pattern using For Loop
• Flag Pattern using For Loop
• Diamond Pattern using For Loop
• Triangle Facing Downward using For Loop
• Triangle Facing upside using For Loop
• Right Angle Triangle facing left
• Right Angle Triangle facing right
• Reverse Number using For Loop
• Prime Number using For Loop
• Print Number divisible by 7
• Print tables using For Loop
• Reverse tables using For Loop
• Separate odd and even numbers
• Check prime or composite number
• Separate positive and negative number
• For Loop Patterns
• Square Pattern Outline using For Loop
• Triangle Outline Pattern
• Diamond Pattern Outline

---

Array Examples in C

One Dimensional Array

• Add Elements to the Array
• Arrange array elements in Ascending
• Arrange array elements in Descending
• Insert an element using Array
• Update an element using Array
• Delete an element using Array
• Interchange an element using Array
• Reverse an element using Array
• Odd or Even Number using Array
• Positive and Negative Numbers using Array
• Armstrong Number 100 to 999
• Greatest Number using Array
• Smallest Number using Array
• Print values divisible by 7 using Array
• Convert binary to decimal using Array
• Convert decimal to binary using Array
• Convert decimal to octal using Array

---

Two Dimensional Array in C

• Print Two Dimensional Array
• Array Addition in Two-Dimenional Array
• Array Subtraction in Two-Dimensional Array
• Array Multiplication using Array
• Lower Triangular Matrix using Array
• Upper Triangluar Matrix using Array
• Print Unit Matrix using Array
• Check and Print Unit Matrix

---

String Example Programs in C

• Print text using String
• String Example
• String Comparison in C
• String Concatenation in C
• String Copy Example in C
• Convert Uppercase to Lowercase
• Remove Duplicate String
• Reverse text using String
• Toggle Case using String
• Conver text into Capital or Small
• Convert Lowercase to Uppercase
• Convert text into Ascending Order using
• Capitalising the first letter
• Check given strings Equal or Not
• Copy String using Predefined Function
• String Length using Predefined Function
• String Length without Predefined Function
• Uppercase to Lowercase using Predefined Function
• Check Palindrome or Not

---

Functions Example Programs in C

• Addition using return type and arguments
• Print marks using return type & arguments
• Function with no return and with arguments in c
• Print tables without arguments

---

Learn All in Tamil © Designed & Developed By Tutor Joes | Privacy Policy | Terms & Conditions