Computer Testing Questions (convert digital string to binary-java), java

Computer Testing Questions (convert digital string to binary-java), java

/**

Title: convert a numeric string to a binary string

Description: enter an integer to convert each integer to a binary number. If the last and third bits are "0", the output value is "0". If it is "1 ", output "1 ".

Question category: bitwise operation

Difficulty: elementary

Score: 60

Run Time Limit: 10 Sec

Memory limit: 128 MByte

Phase: apply for an exam

Input: a string of integers with a length less than 1024. The integers are separated by spaces.

Output: an integer string of 1/0 separated by Spaces

Sample input: 240 0

Sample output: 0 0

Answer:

*/

Public class Main {public static void main (String [] args) {// obtain the nth digit of the corresponding binary number in decimal format. // (x> (n-1 )) & 1 // enter a string of integers // obtain the string array // convert the number string to an integer // obtain the integer of 0/1 // obtain the string of 0/1. cin= new Numeric (System. in); String srcStr = cin. nextLine (); String [] strArray = srcStr. split (""); StringBuilder sb = new StringBuilder (); if (strArray. length >=1024) {System. out. println ("length cannot exceed 1024"); System. exit (0) ;}for (int I = 0; I <strArray. length; I ++) {int number = Integer. parseInt (strArray [I]); int bit = number> 2 & 1; sb. append (bit + "");} System. out. println (sb. toString (). substring (0, sb. length ()-1); cin. close ();}}

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