Lab07 CSE110_JAVA.txt

Classwork######################################################


Task01------------------------------------------------



import java.util.Scanner;

public class Name{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        System.out.println("Enter string password:");
        String str = scanner.nextLine();
        String result = "";

        for (int i = 0; i < str.length() ; i++) {
          char ch = str.charAt(i);
          if ( (int) ch >=97 && (int) ch <= 122) {
            result = result + (char) ( (int) ch -32);
          }
          else {
            result = result + ch;
          }

        scanner.close();
        }
        System.out.print(result);

    }
}





Task02------------------------------------------------


import java.util.Scanner;

public class Name{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        System.out.println("Enter string password:");
        String str = scanner.nextLine();
        String result = "";

        for (int i = str.length()-1; i >=0 ; i--) {
          result += str.charAt(i);

        scanner.close();
        }
        if (str.equals(result)) {
          System.out.println("Palindrome");
        }
        else {
          System.out.println("Not Palindrome");
        }
        
    }
}



Alter-----------------------------------------------------


class Main {
    public static void main(String[] args) {
        boolean result=true;
        String word = "mamu";
        for (int i=0; i<word.length()/2;i++){
            int val = word.length()-1-i;
            System.out.println(word.charAt(i)+"--->"+word.charAt(val));
            if (word.charAt(i)!=word.charAt(val)){
                result=false;
                break;
            }
        }
        if (result){
            System.out.println("Palindrome");
        }
        else{
            System.out.println("Not Palindrome");
        }
    }
}



Task03-------------------------------------------------



import java.util.Scanner;

public class Name{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        System.out.println("Enter string:");
        String str = scanner.nextLine();
        System.out.println("Enter a character:");
        char ch1 = scanner.next().charAt(0); // Read the next token as a string and get the first character
   
        String result = "";

        for (int i = 0; i < str.length() ; i++) {
          char ch2 = str.charAt(i);
          if ( ch1==ch2 ) {
            System.out.println(result);
            result="";
          }
          else {
            result = result + ch2;
          }

        scanner.close();
        }
        System.out.print(result);

    }
}



Evaluation#####################################################


Task01-----------------------------------------------


import java.util.Scanner;

public class Name{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        System.out.println("Enter string:");
        String str = scanner.nextLine();
   
        String result = "";

        for (int i = str.length() -1; i >=0 ; i--) {
          char ch = str.charAt(i);
          result+= ch;
        }
        System.out.print(result);

    }
}





Task02-----------------------------------------------


import java.util.Scanner;

public class Name{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        System.out.println("Enter string:");
        String str = scanner.nextLine();
        int count_vow=0;
        int count_con=0;
   
        String result = "";

        for (int i = 0; i < str.length() ; i++) {
          char ch = str.charAt(i);
          if ( ( (int) ch >= 97 && (int) ch <= 122 ) || ( (int) ch >= 65 && (int) ch <= 90 ) ) {
            if ( ch=='a' || ch=='e' || ch=='i' || ch=='o' || ch=='u' || ch=='A' || ch =='E' || ch=='I' || ch=='O' || ch=='U') {
              count_vow+=1;
            }
            else {
              count_con+=1;
            }
          } 
        }
        if (count_vow>0 && count_con>0 && count_vow%3==0 && count_con%5==0) {
          System.out.print("Aaarr! Me Plunder!!");
        }
        else {
          System.out.print("Blimey! No Plunder!!");
        }       

    }
}




Homework#######################################################


Task01-----------------------------------------------



class HelloWorld {
    public static void main(String[] args) {
        String a= "CSE110 is easy";
        String var1="";
        String var2="";
        for (int i=0;i<a.length();i++){
            if (a.charAt(i)==' '){
                var2 = var1+" "+var2;
                var1="";
            }
            else {
                var1+=a.charAt(i);
            }
            
        }
        var2 = var1+" "+var2;
        System.out.println("Output:"+var2);
    }
}






Task02-----------------------------------------------------------



import java.util.Scanner;

public class Name {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        
        // Taking input from the user
        System.out.print("Enter a string: ");
        String var = scanner.nextLine();
        char test = var.charAt(0);
        String compressed ="";
        int count = 1;
        for (int i=1; i<var.length(); i++) {
          if (var.charAt(i)==test){
            count++;
          }
          else{
            compressed+= test;
            compressed+=count;
            count=1;
            test = var.charAt(i);
          }
        }
        compressed+= test;
        compressed+=count;
        System.out.println(compressed);     
    }
}





Task03------------------------------------------------------


import java.util.Scanner;

public class Name{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        System.out.println("Enter the first string in lowercase:");
        String str1 = scanner.nextLine();
        System.out.println("Enter the second string in lowercase:");
        String str2 = scanner.nextLine();

        String concatenated = str1 + str2;
        String result = "";

        for (int i = 0; i < concatenated.length(); i++) {
            char c = concatenated.charAt(i);
            int value1=0;
            int value2=0;

            for (int j = 0; j < str1.length(); j++) {
                if (str1.charAt(j) == c) {
                    value1=1;
                    break;
                }
            }

            for (int k = 0; k < str2.length(); k++) {
                if (str2.charAt(k) == c) {
                    value2=1;
                    break;
                }
            }

            if (value1==0 || value2==0) {
                result += c;
            }
        }

        System.out.print("Modified String: ");
        for (int i = 0; i < result.length(); i++) {
          char ch = (char) ( (int) result.charAt(i) -32 );

          System.out.print(ch);
        }

        scanner.close();
    }
}




Alter-----------------------------------------



import java.util.Scanner;

public class Main{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        System.out.println("Enter the first string in lowercase:");
        String str1 = scanner.nextLine();
        System.out.println("Enter the second string in lowercase:");
        String str2 = scanner.nextLine();

        String result = "";
        
        for (int i=0; i<str1.length();i++){
            boolean count=true;
            for (int j=0; j<str2.length();j++){
                if (str1.charAt(i)==str2.charAt(j)) {
                    count=false;
                }
            }
            if (count){
                result +=str1.charAt(i);
            }
        }

        for (int i=0; i<str2.length();i++){
            boolean count=true;
            for (int j=0; j<str1.length();j++){
                if (str2.charAt(i)==str1.charAt(j)) {
                    count=false;
                }
            }
            if (count){
                result +=str2.charAt(i);
            }
        }
        System.out.print("Modified String: ");
        for (int i = 0; i < result.length(); i++) {
          char ch = (char) ( (int) result.charAt(i) -32 );

          System.out.print(ch);
        }

        scanner.close();
    }
}


Task04------------------------------------------------------


import java.util.Scanner;

public class Name{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        System.out.println("Enter a string:");
        String str = scanner.nextLine();

        String result = "";
        int count =0;

        for (int i = 0; i < str.length(); i++) {
          if ( (int) str.charAt(i)<65) {
            result+=str.charAt(i);
          } 
          else {
            if (count ==0) {
              int ch1 = (int) str.charAt(i);
              if (ch1<96) {
                ch1+=32;
              }
              result += (char) ch1;
              count =1;
            }
            else {
              int ch2 = (int) str.charAt(i);
              if (ch2>96) {
                ch2-=32;
              }
              result += (char) ch2;
              count =0;              
            }
          }

        scanner.close();
        }
        System.out.print("Output: ");
        System.out.println(result);
    }
}

Task05------------------------------------------------------


import java.util.Scanner;

public class Name {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        // Taking input from the user
        System.out.print("Enter first String ");
        String str1 = scanner.nextLine();
        System.out.print("Enter second String ");
        String str2 = scanner.nextLine();

        for (int i = 0; i < str1.length(); i++) {
            int value = 0;
            int ch1 = (int) str1.charAt(i);
            if ( ch1 > 96) {
              ch1=ch1- 32;
            }
            for (int j = 0; j < str2.length(); j++) { 
              int ch2 = (int) str2.charAt(j);
               if ( ch2 > 96) {
                 ch2=ch2- 32;
               }
               if (ch1==ch2) {
                 value = 1;
                 break;
               }
            }
            if (value == 0) {
                System.out.print(str1.charAt(i));
            }
        }
        
    }
}




Task06----------------------------------------------------------------------------


import java.util.Scanner;

public class Name{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        System.out.println("Enter string password:");
        String str = scanner.nextLine();

        int count_UL =0;
        int count_LL =0;
        int count_D =0;
        int count_SC =0;

        if (str.length() < 8) {
            System.out.println("False");
  
        }
        else{
        for (int i = 0; i < str.length(); i++) {
          char ch = str.charAt(i);
          if ( (int) ch >=65 &&  (int) ch <= 90) {
            count_UL++;
          }
          else if ( (int) ch >=97 &&  (int) ch <= 122) {
            count_LL ++;
          }
          else if ( (int) ch >=40 &&  (int) ch <= 57) {
            count_D ++;
          }
          else {
            if ( (int) ch !=32) {
              count_SC++;
            }
            
          }
          
        scanner.close();
        }
        if (count_UL > 0 && count_LL > 0 && count_D > 0 && count_SC > 0) {
          System.out.println("True");
        }
        else {
          System.out.println("False");
        }
        }
    }
}




Task07----------------------------------------------------------------------------



import java.util.Scanner;

public class Name{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        System.out.println("Enter first string:");
        String str1 = scanner.nextLine();
        System.out.println("Enter second string:");
        String str2 = scanner.nextLine();
        String result = "";
        int count =0;

        for (int i = 0; i < str1.length()-1; i++) {
          // converting to lowercase using Ascii as we assume str2 is in lowercase
          char ch1 = str1.charAt(i);
          if ( (int) ch1 <96) {
            ch1 = (char) ( (int) ch1 +32);
          }
          char ch2 = str1.charAt(i+1);
          if ( (int) ch2 <96) {
            ch2 = (char) ( (int) ch2 +32);
          }      
          
          result += ch1 ;
          result += ch2 ;
          if (str2.equals(result)) {
            count++;
          }
          result="";
        scanner.close();
        }
        System.out.println("Occurrence: "+count+" time(s)");
    }
}