Write a program to find minimun digit of a number in java

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Write a program to find minimum digit of a number in java

public class MinDigit
{
    public static void main(String args[]){
    int num=1234,min , last , temp;
    temp=num; 
    min=num%10; 
    while(temp!=0){ 
        last=temp%10;
        if (min>last){ 
        min=last;
        }
        temp=temp/10;
    }
    
    System.out.println(num+" min number is " +min);
    }
}

Output
1234 min number is 1

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