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Mohit Rajpurohit

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PS_Ch6_Q4

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PS_Ch3_Q4

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  package com.company.Ch3_15_PracticeSet ; import java.util.Scanner ; public class PS_Ch3_Q4 { public static void main ( String [] args ) { Scanner scan = new Scanner ( System . in ); System . out . println ( "Enter any string." ); String str = scan . nextLine (); int index = str . indexOf ( " " ); System . out . println ( "Double or triple spaces are at index : " + index ); } }
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PS_Ch9_Q4

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  package com.company.Ch9_44_PracticeSet ; import java.util.Scanner ; class rectangle { int length ; int breadth ; public rectangle ( int length , int breadth ) { this . length = length ; this . breadth = breadth ; } public int getLength () { return length ; } public int getBreadth () { return breadth ; } public rectangle () { Scanner scan = new Scanner ( System . in ); System . out . println ( " \n Enter the length of rectangle: " ); length = scan . nextInt (); System . out . println ( "Enter the breadth of rectangle : " ); breadth = scan . nextInt (); } public int area () { return length * breadth ; } public int perimeter () { return 2 * ( length + breadth ); } public void display () { System . out . println ( "The area of rectangle having length " + this . getLength () + " and breadth " + t...
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