commit

Author: nanawarevishal

1.DataType/ClassCodes/Program10.java

@@ -0,0 +1,10 @@
+package ClassCodes;
+
+public class Program10 {
+
+    int x =10; //Instance variable or Global variable || Stored at location in JVM-
+    public static void main(String[] args) {
+        
+        int y=20; // Local Variable || Stored at location in JVM- Stack Section
+    }
+}

1.DataType/ClassCodes/Program2.java

@@ -0,0 +1,10 @@
+package ClassCodes;
+
+public class Program2 {
+    public static void main(String[] args) {
+        //  jerNo =18; //Error : can't find symbol
+
+        // System.out.println(jerNo);
+
+    }
+}

1.DataType/ClassCodes/Program3.java

@@ -0,0 +1,13 @@
+package ClassCodes;
+
+public class Program3 {
+    public static void main(String[] args) {
+        
+        byte jerNo = 127; //Can't Give the error
+
+        // byte jerNo = 128; // It will give the number beacause the range of the byte datatype is -128 to 127
+
+
+        System.out.println(jerNo);
+    }
+}

1.DataType/ClassCodes/Program4.java

@@ -0,0 +1,15 @@
+package ClassCodes;
+
+public class Program4 {
+    public static void main(String[] args) {
+        
+        byte var1 = 18;
+        byte var2 = 18;
+
+        // var1 = var1 + var2;  // error: incompatible types: possible lossy conversion from int to byte (Compile time error)
+                                // Runtime value generated in var1 and the addition of two byte is 36 but at runtime number 
+                                // generated by java is by default is int. therefore the error  lossy conversion from int to byte
+
+        System.out.println(var1);
+    }
+}

1.DataType/ClassCodes/Program5.java

@@ -0,0 +1,14 @@
+package ClassCodes;
+
+public class Program5 {
+    public static void main(String[] args) {
+        
+        short var1 = 10;
+        short var2 = 20;
+
+        // var1 = var1 + var2;  //same error in program4
+        System.out.println(var1);  
+
+        System.out.println(var1+var2);
+    }
+}

1.DataType/ClassCodes/Program6.java

@@ -0,0 +1,18 @@
+package ClassCodes;
+
+public class Program6 {
+    public void main(String[] args) {
+        
+        // float f1 =7.5;
+        // float f2 = 7.5;   // error: incompatible types: possible lossy conversion from double to float
+
+        // float f1 =7.5f;
+        // float f2 = 7.5f;  //to remove the error
+
+        // System.out.println(f1);
+        // System.out.println(f2);
+
+        System.out.println("Hello");
+        
+    }
+}

1.DataType/ClassCodes/Program7.java

@@ -0,0 +1,20 @@
+package ClassCodes;
+
+public class Program7 {
+    // public void main(String[] args) {
+
+    //     System.out.println("Hello");  //Error: 'main' method is not declared 'public static'
+
+    // }
+
+    //  static void main(String[] args) {
+    //     System.out.println("Hello");  ////Error: 'main' method is not declared 'public static'
+    // }
+
+
+    public static void main(int[] args) {
+        System.out.println("Hello");
+        
+        
+    }
+}

1.DataType/ClassCodes/Program8.java

@@ -0,0 +1,9 @@
+package ClassCodes;
+
+public class Program8 {
+    public static void main(int[] args) {
+        System.out.println("Hello"); //Runtime Error: error: can't find main(String[]) method in class: ClassCodes.Program8
+        
+    }
+    
+}

1.DataType/ClassCodes/Program9.java

@@ -0,0 +1,9 @@
+package ClassCodes;
+
+public class Program9 {
+     static void main(String[] args) {
+        
+        System.out.println("Helo"); //Runtime error: 'main' method is not declared 'public static'
+        
+    }
+}

1.DataType/Program3.java

@@ -1,10 +1,10 @@
 class Demo{
 
-	public static void main(String[] args){
+	public void main(String[] args){
 
-		float var1 = 12.5f;
-		// float var2 = 23.5f;
+		// float var1 = 12.5f;
+		// // float var2 = 23.5f;
 
-		System.out.println(var1);
+		// System.out.println(var1);
 	}
 }

3.Array/OvalElement.java renamed to 3.Array/ClassCodes/OvalElement.java

@@ -0,0 +1,42 @@
+
+/*
+ Program 1 : WAP to create 1-D array of length n from user and also take value
+             from user and print whole 1-D array.
+ */
+
+
+
+package PracticeCodes;
+
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+
+public class Program1 {
+    public static void main(String[] args)throws Exception {
+        
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+
+        System.out.println("Enter the size of the array: ");
+        int size = Integer.parseInt(br.readLine());
+
+        System.out.println("Enter the element of array: ");
+
+        int a[] = new int[size];
+
+        for(int i=0;i<a.length;i++)
+        {
+            a[i] = Integer.parseInt(br.readLine());
+        }
+
+        System.out.println("The array becomes: ");
+
+        for(int i=0;i<a.length;i++)
+        {
+            System.out.print(a[i]+" ");
+        }
+        
+
+
+    }
+    
+}

3.Array/UncommonElements.java renamed to 3.Array/ClassCodes/UncommonElements.java

@@ -0,0 +1,36 @@
+/*
+Program 9 : Write a program that creates integer array of 10 elements, 
+accepts values of arrays and Find sum of all odd numbers
+*/
+
+package PracticeCodes;
+
+import java.io.*;
+
+public class Program10 {
+
+    public static void main(String[] args) throws IOException {
+
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+
+        System.out.println("Enter the size of array : ");
+        int size = Integer.parseInt(br.readLine());
+
+        int[] arr = new int[size];
+
+        System.out.println("Enter the element of array : ");
+        for (int i = 0; i < size; i++) {
+
+            arr[i] = Integer.parseInt(br.readLine());
+        }
+        int Sum = 0;
+        for (int i = 0; i < size; i++) {
+
+            if (arr[i] % 2 == 1) {
+
+                Sum += arr[i];
+            }
+        }
+        System.out.println("Sum of All odd numbers : " + Sum);
+    }
+}

3.Array/additionofElementEven.java renamed to 3.Array/ClassCodes/additionofElementEven.java

@@ -0,0 +1,50 @@
+
+/*
+ Program 10 : Write a program that creates integer array of elements, 
+ 	      accepts values of arrays and Search for a number in an array of 10.
+ */
+
+package PracticeCodes;
+
+import java.io.*;
+
+public class Program11 {
+
+    public static void main(String[] args) throws IOException {
+
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+
+        System.out.println("Enter the size of array : ");
+        int size = Integer.parseInt(br.readLine());
+
+        int[] arr = new int[size];
+
+        System.out.println("Enter the element of array : ");
+        for (int i = 0; i < size; i++) {
+
+            arr[i] = Integer.parseInt(br.readLine());
+        }
+        
+        System.out.println("Enter the searching element : ");
+        int Search = Integer.parseInt(br.readLine());
+
+        boolean flag  = false;
+
+        for (int i = 0; i < size; i++) {
+
+            if (arr[i]  == Search) {
+
+                flag = true;
+                System.out.println("The element "+Search+" is found at index "+i);
+                break;
+
+            }
+        }
+
+        if(!flag){
+            System.out.println("Element not found in array...!");
+        }
+        
+    }
+}
+

3.Array/commonElement.java renamed to 3.Array/ClassCodes/commonElement.java

@@ -0,0 +1,36 @@
+/*
+Program 11 : Write a program which takes in 10 values and 
+creates another array which has cubes of the values and prints it.
+*/
+
+package PracticeCodes;
+
+import java.io.*;
+
+public class Program12 {
+
+    public static void main(String[] args) throws IOException {
+
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+
+        System.out.println("Enter the size of array : ");
+        int size = Integer.parseInt(br.readLine());
+
+        int[] arr = new int[size];
+        int[] cube = new int[size];
+
+        System.out.println("Enter the element of array : ");
+        for (int i = 0; i < size; i++) {
+
+            arr[i] = Integer.parseInt(br.readLine());
+            cube[i] = arr[i] * arr[i] * arr[i];
+        }
+
+        System.out.println("Cube Array : ");
+        for (int i = 0; i < size; i++) {
+
+            System.out.println(cube[i]);
+        }
+
+    }
+}

3.Array/countDigitElement.java renamed to 3.Array/ClassCodes/countDigitElement.java

@@ -0,0 +1,50 @@
+
+/*
+ Program 12 : Write a program to take in 10 values and 
+ 	      print only those numbers which are palindrome.
+ */
+
+
+package PracticeCodes;
+
+import java.io.*;
+
+public class Program13 {
+
+    public static void main(String[] args) throws IOException {
+
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+
+        System.out.println("Enter the size of array : ");
+        int size = Integer.parseInt(br.readLine());
+
+        int[] a = new int[size];
+
+        System.out.println("Enter the element of array : ");
+        for (int i = 0; i < size; i++) {
+
+            a[i] = Integer.parseInt(br.readLine());
+        }
+
+        System.out.println("The palindrome numbers are: ");
+        for(int i=0;i<a.length;i++)
+        {
+            int num = a[i];
+            int pal = 0;
+
+            while(num!=0)
+            {
+                int rem = num % 10;
+                pal = pal * 10 +rem;
+
+                num /=10;
+                
+            }
+
+            if(pal == a[i]){
+
+                System.out.print(a[i]+" ");
+            }
+        }
+    }
+}