DSA

Data Structure and Algorithm

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CREATE UNIT CONVERTER APP

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CREATE UNIT CONVERTER APP USING XML AND JAVA IN ANDROID STUDIO xml code :- <? xml version ="1.0" encoding ="utf-8" ?> < androidx.constraintlayout.widget.ConstraintLayout xmlns: android ="http://schemas.android.com/apk/res/android" xmlns: app ="http://schemas.android.com/apk/res-auto" xmlns: tools ="http://schemas.android.com/tools" android :layout_width ="match_parent" android :layout_height ="match_parent" android :background ="#F8E753" tools :context =".MainActivity" > < EditText android :id ="@+id/editTextTextPersonName" android :layout_width ="wrap_content" android :layout_height ="wrap_content" android :ems ="10" android :inputType ="number" android :textColor ="#E91E63" app :layout_constraintBottom_toBottomOf ="parent" ...
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while loop in java.

1. 1 2 3 4 5 6 7 8 9 10 int i = 1 ; while ( i <= 10 ) { System . out . println ( i ); i ++ ; } Q2. What will be output of this program. int x = 4 , y , z ; y =-- x ; z = x -- ; System . out . println ( x ); System . out . println ( y ); System . out . println ( z ); output:- 2 3 3 Q3. What will be output of this program. int x = 4 , y = 3 , z ; z = x -- - y ; System . out . println ( x ); System . out . println ( y ); System . out . println ( z ); output:- 3 3 1 Q4. What will be output of this program. package com.company ; import java.util.Scanner ; public class Main { public static void main ( String [] args ) { double i = 1.1 ; while ( i == 1.1 ) { System . out . println ( i ); i = i - 0.1 ; } } } output:- 1.1
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how to reverse number

 HOW TO REVERSE A NUMBER take varible  int number; //to store original or to get quotient int rev; //to decrease the number int reverse_number = 0; //to store reverse number First take input from user.( number=5364 ) then run one while loop condition while(number>0) under loop rev = number%10; //we get rev =536 //take another variable reverse_number reverse_number = reverse_number*10+rev; //we get reverse_number= 4 number=number/10; //now number= 536 package com.company ; import java.util.Scanner ; public class Main { public static void main ( String [] args ) { // reverse number program int number , rev , reverse_number = 0 ; System . out . println ( "Enter a number" ); Scanner sc = new Scanner ( System . in ); number = sc . nextInt (); while ( number > 0 ) { rev = number % 10 ; reverse_number = reverse_number * 10 + rev ; number = number / 10 ; } System . out . printl...
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