String Convert into Upper case in java.

 package program;

import java.util.*;
public class code {
   public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    System.out.println("enter srting=");
    String s = sc.nextLine();
    String t="";
    for(int i=0; i<s.length(); i++){
        int as=s.charAt(i);
        if(as>=97 && as<=122){
            as-=32;
            t+=(char)as;
        }
        else
            t+=s.charAt(i);
    }
    System.out.println("Upper case string is="+t);
   }
}

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