Add Java programming practice programs

curious-vasavi · curious-vasavi · commit 7ae70ccf3b45 · 2025-12-15T19:25:22.000+05:30
diff --git a/.classpath b/.classpath
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-21">
+		<attributes>
+			<attribute name="module" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>
diff --git a/.gitignore b/.gitignore
@@ -0,0 +1 @@
+/bin/
diff --git a/.project b/.project
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>java_Programming_Practice</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>
diff --git a/.settings/org.eclipse.core.resources.prefs b/.settings/org.eclipse.core.resources.prefs
@@ -0,0 +1,2 @@
+eclipse.preferences.version=1
+encoding/<project>=UTF-8
diff --git a/.settings/org.eclipse.jdt.core.prefs b/.settings/org.eclipse.jdt.core.prefs
@@ -0,0 +1,11 @@
+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=21
+org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
+org.eclipse.jdt.core.compiler.compliance=21
+org.eclipse.jdt.core.compiler.debug.lineNumber=generate
+org.eclipse.jdt.core.compiler.debug.localVariable=generate
+org.eclipse.jdt.core.compiler.debug.sourceFile=generate
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=21
diff --git a/src/module-info.java b/src/module-info.java
@@ -0,0 +1,8 @@
+/**
+ * 
+ */
+/**
+ * 
+ */
+module java_Progamming_Practice {
+}
diff --git a/src/number_Programming/core/day_01/Count.java b/src/number_Programming/core/day_01/Count.java
@@ -0,0 +1,24 @@
+package number_Programming.core.day_01;
+import java.util.*;
+// 4.write a program to count the numbers between m to n 
+public class Count 
+{
+	public static int count(int m , int n)
+	{
+		int count = 0;
+		for(int i = m ;i<=n;i++)
+		{
+			count++;
+		}
+		return count;
+	}
+public static void main(String[] args) {
+	Scanner sc = new Scanner(System.in);
+	System.out.println("enter m value :");
+	int m = sc.nextInt();
+	System.out.println("enter n value : ");
+	int n = sc.nextInt();
+	System.out.println("count of numbers from range " + m + " to " + n + " is " + count(m, n));
+	sc.close();
+}
+}
diff --git a/src/number_Programming/core/day_01/CountDigits.java b/src/number_Programming/core/day_01/CountDigits.java
@@ -0,0 +1,23 @@
+package number_Programming.core.day_01;
+import java.util.*;
+//16.wapt count the number of digits in a given number
+public class CountDigits
+{
+	public static int count(int num)
+	{
+		int count = 0;
+		while(num>0)
+		{
+			num= num/10;
+			count++;
+		}
+		return count;
+	}
+	public static void main(String[] args) {
+		Scanner sc = new Scanner(System.in);
+		System.out.println("Enter a number : ");
+		int num = sc.nextInt();
+		System.out.println("The count of digits in the number :" + count(num));
+		sc.close();
+	}
+}
diff --git a/src/number_Programming/core/day_01/Cube.java b/src/number_Programming/core/day_01/Cube.java
@@ -0,0 +1,17 @@
+package number_Programming.core.day_01;
+import java.util.*;
+//9.write a program to produce the cube of a given number
+public class Cube {
+
+	public static void main(String[] args) 
+	{
+		Scanner sc = new Scanner(System.in);
+		System.out.println("Enter  a number ");
+		int num = sc.nextInt();
+		int cube = num * num * num ;
+		System.out.println("The cube of the given number is " + cube);
+		// TODO Auto-generated method stub
+
+	}
+
+}
diff --git a/src/number_Programming/core/day_01/EvenOrOdd.java b/src/number_Programming/core/day_01/EvenOrOdd.java
@@ -0,0 +1,28 @@
+package number_Programming.core.day_01;
+import java.util.*;
+//1.write a program to check whether the number is even or odd
+public class EvenOrOdd
+{
+	
+public static void evenOdd(int num)
+{
+	if(num % 2 == 0)
+	{
+		System.out.println("Number is even ");
+		
+	}
+	else
+		System.out.println("Number is odd");
+}
+
+	public static void main(String[] args) 
+	{
+		Scanner sc = new Scanner(System.in);
+		System.out.println("Enter a number : ");
+		int num = sc.nextInt();
+		evenOdd(num);
+		sc.close();
+	}
+		
+
+}
diff --git a/src/number_Programming/core/day_01/Expo.java b/src/number_Programming/core/day_01/Expo.java
@@ -0,0 +1,25 @@
+package number_Programming.core.day_01;
+import java.util.*;
+//13.to produce the exponential value for a given base and power
+public class Expo
+{
+	public static int expo(int base,int power)
+	{
+		int expo = 1;
+		for(int i = 1;i<=power;i++)
+		{
+			expo = expo * base;
+		}
+		return expo;
+	}
+	public static void main(String[] args) {
+		Scanner sc = new Scanner(System.in);
+		System.out.println("Enter a base value..");
+		int base = sc.nextInt();
+		System.out.println("Enter a power value..");
+		int power = sc.nextInt();
+		System.out.println("The exponential value of " + base + " to the power of " + power + " is = " + expo(base,power));
+		sc.close();
+	}
+
+}
diff --git a/src/number_Programming/core/day_01/ExtractDigitInReverseOrder.java b/src/number_Programming/core/day_01/ExtractDigitInReverseOrder.java
@@ -0,0 +1,24 @@
+package number_Programming.core.day_01;
+import java.util.*;
+//14.wapt extract digits in reverse order
+public class ExtractDigitInReverseOrder 
+{
+	public static void extraction(int num)
+	{
+		while(num>0)
+		{
+			int ld = num % 10;
+			System.out.print(ld);
+			num = num/10;
+		}
+	}
+	public static void main(String[] args) {
+		Scanner sc = new Scanner(System.in);
+		System.out.println("Enter a number : ");
+		int num = sc.nextInt();
+		System.out.print("The reverse Order of extraction is ");
+		extraction(num);
+		sc.close();
+	}
+
+}
diff --git a/src/number_Programming/core/day_01/Factorial.java b/src/number_Programming/core/day_01/Factorial.java
@@ -0,0 +1,18 @@
+package number_Programming.core.day_01;
+import java.util.*;
+//10.write a program to produce the factorial value of a number .
+public class Factorial
+{
+	public static void main(String[] args) {
+		Scanner sc = new Scanner(System.in);
+		System.out.println("Enter a number");
+		int num = sc.nextInt();
+		int fact = 1;
+		for(int i = 1;i<=num;i++)
+		{
+			fact = fact * i;
+		}
+		System.out.println("The factorial of " + num + " is " + fact );
+	}
+
+}
diff --git a/src/number_Programming/core/day_01/Factors.java b/src/number_Programming/core/day_01/Factors.java
@@ -0,0 +1,21 @@
+package number_Programming.core.day_01;
+import java.util.*;
+//11.write a program to produce the factors of the number.
+public class Factors
+{
+	public static void main(String[] args) {
+		Scanner sc = new Scanner(System.in);
+		System.out.print("Enter a number : ");
+		int num = sc.nextInt();
+		System.out.println("The factors of " + num + " are ");
+		for(int i = 1;i<=num;i++)
+		{
+			if(num % i == 0)
+			{
+				System.out.print(i + " ");
+			}
+		}
+		sc.close();
+	}
+
+}
diff --git a/src/number_Programming/core/day_01/FibonacciSeries.java b/src/number_Programming/core/day_01/FibonacciSeries.java
@@ -0,0 +1,20 @@
+package number_Programming.core.day_01;
+import java.util.Scanner;
+//12.write a program to produce the fibonacci series
+public class FibonacciSeries 
+{
+public static void main(String[] args) {
+	Scanner sc = new Scanner(System.in);
+	System.out.println("Enter n value : ");
+	int n = sc.nextInt();
+	int a = 0;
+	int b = 1;
+	for(int i = 1;i<=n;i++)
+	{
+		System.out.println(a);
+		int c = a+b;
+		a=b;
+		b=c;
+	}
+}
+}
diff --git a/src/number_Programming/core/day_01/Product.java b/src/number_Programming/core/day_01/Product.java
@@ -0,0 +1,25 @@
+package number_Programming.core.day_01;
+import java.util.*;
+//3.write a program to produce the product of the numbers between m and n 
+public class Product
+{
+	public static int product(int m,int n)
+	{
+		int product = 1;
+		for(int i = m;i<=n;i++)
+		{
+			product = product * i;
+		}
+		return product;
+	}
+	public static void main(String[] args) {
+		Scanner sc = new Scanner(System.in);
+		System.out.println("Enter m value : ");
+		int m = sc.nextInt();
+		System.out.println("Enter n value :");
+		int n = sc.nextInt();
+		System.out.println("The product of values from range " + m + " to " + n + " is = " + product(m, n));
+		sc.close();
+	}
+
+}
diff --git a/src/number_Programming/core/day_01/ProductOfDigits.java b/src/number_Programming/core/day_01/ProductOfDigits.java
@@ -0,0 +1,24 @@
+package number_Programming.core.day_01;
+import java.util.*;
+//19.wapt product the digits in a given number
+public class ProductOfDigits 
+{
+	public static void product(int num)
+	{
+		int product = 1;
+		while(num > 0)
+		{
+			int ld = num % 10;
+			product = product * ld;
+			num = num / 10;
+		}
+		System.out.println("The product of the digits present in the given number is : " + product);
+	}
+	public static void main(String[] args) {
+		Scanner sc = new Scanner(System.in);
+		System.out.println("Enter a number :");
+		int num = sc.nextInt();
+		product(num);
+		sc.close();
+	}
+}
diff --git a/src/number_Programming/core/day_01/ReverseOfNumber.java b/src/number_Programming/core/day_01/ReverseOfNumber.java
@@ -0,0 +1,26 @@
+package number_Programming.core.day_01;
+
+import java.util.Scanner;
+//19.wapt to reverse a number
+public class ReverseOfNumber 
+{
+	public static int reverse(int num)
+	{
+		int reverse = 0;
+		while(num>0)
+		{
+			int ld = num % 10 ;
+			reverse = reverse * 10+ld;
+			num = num / 10;
+		}
+		return reverse;
+	}
+	public static void main(String[] args) {
+		Scanner sc = new Scanner(System.in);
+		System.out.println("Enter a number : ");
+		int num = sc.nextInt();
+		int reverse = reverse(num);
+		System.out.println("The reverse of the number is : " + reverse );
+		sc.close();
+	}
+}
diff --git a/src/number_Programming/core/day_01/Square.java b/src/number_Programming/core/day_01/Square.java
@@ -0,0 +1,14 @@
+package number_Programming.core.day_01;
+import java.util.*;
+//8.write a program to produce the square of a given number
+public class Square
+{
+	public static void main(String[] args) {
+		Scanner sc = new Scanner(System.in);
+		System.out.println("Enter a number : ");
+		int num = sc.nextInt();
+		int square = num  * num;
+		System.out.println("The square of the given number is " + square);
+	}
+
+}
diff --git a/src/number_Programming/core/day_01/SumOfDigits.java b/src/number_Programming/core/day_01/SumOfDigits.java
@@ -0,0 +1,25 @@
+package number_Programming.core.day_01;
+import java.util.*;
+//17.wap to sum the digits in a given number
+public class SumOfDigits
+{
+	public static void sum(int num)
+	{
+		int sum = 0;
+		while(num>0)
+		{
+			int ld = num % 10;
+			sum = sum + ld;
+			num = num / 10;
+		}
+		System.out.println("The sum of the digits present in the number is " + sum);
+//		return sum;
+	}
+	public static void main(String[] args) {
+		Scanner sc = new Scanner(System.in);
+		System.out.println("Enter a number :");
+		int num = sc.nextInt();
+		sum(num);
+		sc.close();
+	}
+}
diff --git a/src/number_Programming/core/day_01/SumOfNumbers.java b/src/number_Programming/core/day_01/SumOfNumbers.java
diff --git a/src/number_Programming/core/day_01/Swap.java b/src/number_Programming/core/day_01/Swap.java
diff --git a/src/number_Programming/core/day_01/SwapWithout3rdVar.java b/src/number_Programming/core/day_01/SwapWithout3rdVar.java

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,2 @@`
	`1`	`+eclipse.preferences.version=1`
	`2`	`+encoding/<project>=UTF-8`
-Original file line number
+Diff line change
@@ @@ -0,0 +1,8 @@ @@
 +/**
 + *
 + */
 +/**
 + *
 + */
 +module java_Progamming_Practice {
 +}