JAVA

1. Java-overview 2. Features of Java 3. History of Java 4. HW SW Req for Java SE 7 5. Java Environment Setup 6. Basic Requirement 7. Comments 8. My First Program in Java 9. Line Break 10. Escape Sequences 11. Literals in Java 12. Identifiers in Java 13. Variables in Java 14. Data-Types in Java 15. Declare Variables 16. Reserved Key Words 17. printf() 18. Chained & Embedded state 19. Prog.to print sum of 2 nos 20. Scanner class 21. Prg.to print sum & average 22. Area & Perimeter of Rectangle 23. Area Circumference of Circle 24. Prg.for Simple Calculator 25. Operatos in Java 26. Ex. Of Operators 27. Swap two numbers 28. Hierarchy of Operators 29. if( ) statement 30. Prg.to check +ve,-ve or zero 31. if..else statement 32. Prg.to check Odd or Even 33. Prg.to print larger of 2 nos 34. Prg.to print largest of 3 nos 35. Prg.to check divisibility 36. Prg.to check print range 37. for. . . loop statement 38. prg.to print series of nos 39. Prg.to check divisibility 40. prg.to print sum of nos 41. Prg.to print Pyramid 42. prg.for Factorial 43. prg.to fill screen 44. prg.for largest/smallest no 45. prg.to print reverse no 46. prg.to add each digit 47. prg.for sum of series 48. prg.for fibonacci series 49. prg.to check Prime nos 50. prg. Prime no from 1 to 100 51. prg.Specified Prime nos 52. while( ) statement 53. do. . While statement 54. break & continue statement 55. switch case statement 56. Array in Java 57. print reverse order using array 58. Ascending/Descending order 59. prg.to search no in Array 60. Multidimensional Array 61. String in Java 62. String with spaces 63. prg.to print string in reverse 64. prg. to count A,E,I,O,U vowel 65. User defined methods 66. Methods program example 67. General Purpose Programs 68. Loan & EMI calculation prg. 69. Table print prg. 70. Leap year program 71. lower to UPPER case prg. 72. Age Distribution prg. 73. Bank note calculation prg. 74. Simple Interest prg. 75. Compound Interest prg. 76. Simple Depreciation prg. 77. Reducing bal.Depreciation prg. 78. Marksheet prg. 79. Income Tax prg. 80. Time calculator prg. 81. Distance converter prg. 82. Volume Air Calculation prg. 83. Time to fill Water Tank prg. 84. Salary Calculation prg. 85. Total Sale Calculation prg. 86. Male/Female percentage prg. 87. Library Rent prg. 88. Office Expance prg. 89. Total Salary Calculation prg. 90. Profit or Loss prg. 91. Total Profit/Loss prg. 92. Palindrome program 93. Java Interview Part1 94. Java Interview Part2 95. Java Interview Part3 96. Java Interview Part4 97. Java Interview Part5 98. Java Interview Part6 99. Java Interview Part7 100. Java Interview Part8 101. Java Interview Part9 102. Java Interview Part10 103. Java Interview Part11
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Method Program Example in java tutorials

 

Example: Program to enter radius and calculate Area of circle by using user defined method.

 Sam Sir

//program name Main071.java

//Program to enter radius and calculate Area of circle by using user defined method.

import java.util.Scanner;

public class Main071

{

public void area()

{

double pi = 3.14159;

int radius;

System.out.print("Enter radius of circle : ");

Scanner scan=new Scanner(System.in);

radius=scan.nextInt();

double areaofcircle = pi * radius * radius;

System.out.printf("Area of circle is: %f",areaofcircle);

}

public static void main(String[] args)

{

Main071 m=new Main071();

m.area();

}

}

Output

Enter radius of circle : 2

Area of circle is: 12.566360


 

Example: Program to enter 2 numbers and print Product of both using user defined method

 Sam Sir

//program name Main072.java

//Program to enter 2 numbers and print Product of both using user defined method

import java.util.Scanner;

public class Main072

{

static int Multiply(int i, int j)

{

int num1, num2,product;

num1 = i;

num2 = j;

product = num1 * num2;

return product;

}

public static void main(String[] args)

{

int num1, num2;

System.out.print("Enter Number1 : ");

Scanner scan=new Scanner(System.in);

num1=scan.nextInt();

System.out.print("Enter Number2 : ");

num2=scan.nextInt();

System.out.printf("Product of %d and %d = %d ",num1,num2,Multiply(num1,num2));

}

}

Output

Enter Number1 : 4

Enter Number2 : 2

Product of 4 and 2 = 8

 

Example: Program to Enter 2 number and print Maximum of both using user defined method

 Sam Sir

//program name Main073.java

//Program to Enter 2 number and print Maximum of both using user defined method

import java.util.Scanner;

public class Main073

{

static int max(int a,int b)

{

if (a>b)

return(a);

else

return(b);

}

public static void main(String[] args)

{

int a,b;

System.out.print("Enter Two nos separated by space : ");

Scanner scan=new Scanner(System.in);

a=scan.nextInt();

b=scan.nextInt();

System.out.printf("max no is = %d ",max(a,b));

}

}

Output

Enter Two nos separated by space : 15 45

max no is = 45

 

Example: Program to enter Salary in Decimal and convert salary to round figure without using built-in function

 Sam Sir

//program name Main074.java

/*Program to enter Salary in Decimal and convert salary to round figure without

using built-in function*/

import java.util.Scanner;

public class Main0

{

static int round(float sal)

{

float salary = sal + 0.5F;

int s = (int)salary;

return s;

}

public static void main(String[] args)

{

float x;

System.out.print("Enter salary in : ");

Scanner scan=new Scanner(System.in);

x=scan.nextFloat();

System.out.printf("Rounded salary is %d\n",round(x));

}

}

Output

Enter salary : 15000.250

Rounded salary is 15000


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