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Browse Coursesclass Customizedstack { private int arr[];//Array to store stack elements private int top; //acts as a cursor for stack private int capacity;//maximum size of stack Customizedstack(int size)//5 { capacity=size;//5 arr=new int[capacity];//0-4 top=-1; } public void push(int value)//10 { if(top==capacity-1)//4 { System.out.println(“stack is overflow”); } else { arr[++top]=value; } } public int […]
/*Question 2ú : Reverse Prefix of Word(Using Stack) Given a 0-indexed string word and a character ch, reverse the segment of word that starts at index 0 and ends at the index of the first occurrence of ch (inclusive). If the character ch does not exist in word, do nothing.ä For example, […]
import java.util.*; class Stacksearch { public static void main(String args[]) { Stack<String> s=new Stack<>(); //push the elements(inserting elements) s.push(“Apple”); s.push(“Banana”); s.push(“cherry”); System.out.println(“the elements are: +s); String searchelement=”cherry”; int position=s.search(searchelement); if(position != -1) { System.out.println(searchelement +”found at the position(from top)” +position); } else { System.out.println(searchelement +”not found inside the stack”); […]
Stack: A stack is a linear data structure that follows LIFO(LAST IN FIRST OUT) principle linear data structure–>where elements are arranged in a sequence order. Every elements will be connected to its previous or next element Task Description push(item)———————-Adds an item to the top of the stack pop()—————————Remove and return […]
JAVA class main { public static void main(String args[]) { String a=”java”; char target=’a’; int count=0; for(int i=0; i<a.length(); i++)//4<4 { if(a.charAt(i)==target)//a==a count++;//2 } System.out.println(count);//2 } }
1)Reverse each word in a sentence input: java is fun output:avaj si nuf import java.util.*; class ASC { public static void main(String args[]) { String a=”java is fun”; String b[]=a.split(” “);//b[java–>0 is–>1 fun–>2] for(String c:b)//c=fun { StringBuilder s=new StringBuilder(c);//(fun) System.out.print(s.reverse()+” “);//avaj si nuf } } } ———————————– […]
–>Should be able to define a solution of a problem in terms of solution of similar problems –>Proper terminating condition Factorial==> 5!=>5x4x3x2x1 5!=5×4! 4!=4x3x2x1 4!=4×3! cimport java.util.*; class ASC { static int fact(int n)//5 { if(n==0) return 1; else return n*fact(n-1); } public static void main(String […]
import java.util.*; class ASC { public static void main(String args[]) { Scanner s=new Scanner(System.in); int amount; while(true) { System.out.println(“enter the amount to withdraw”);//2300 amount=s.nextInt();//2300 if(amount==0) { System.out.println(“exiting…”); break; } if(amount%100!=0)2300%100==>00!=0 { System.out.println(“Invalid amount…”); } int a=amount/2000; amount=amount%2000; int b=amount/500; amount=amount%500; int c=amount/100; amount=amount%100; if(a>0) System.out.println(a+”x2000″); if(b>0) […]
import java.util.*; class Bank { public static void main(String args[])
Wrapper classes in java: A wrapper class in java is a class whose objects wraps or contains primitive datatypes Need: They convert primitive datatypes into objects In collection framework, such as Arraylist and sets,will store only objects and not primitive datatypes Primitive datatypes Wrapper classes char————————Character int————————-Integer float———————–Float double———————–Double […]
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