2020.3.19 java second job

1, there is known a, b are integer variable, the value of the swap write a, b, two program variables.
(Knowledge Point: variables and operators comprehensive application)

package second Java job; 

Import java.util.Scanner; 

public  class second job Java { 

    public  static  void main (String [] args) {
         // the TODO Auto-Generated Method Stub 
        char A = 'A' ;
         char B = 'A' + 32 ; 
        System.out.println (B); 
    } 

}

2, given a 0 to 1000 integer find each digit and, for example,
as the result 345 is 3 + 4 + 5 = 12 Note: decomposition digital either to
other after molding may be in addition to (knowledge after the first mold: variables and operators
comprehensive application)

package a second time Java operations;

Import java.util.Scanner; 

public  class second job Java { 

    public  static  void main (String [] args) {
         // the TODO Auto-Generated Stub Method 
        System.out.println ( "Enter a number of 1 to 1,000" ); 
        Scanner Scan = new new Scanner (the System.in);
         int A = scan.nextInt ();
         int B, C, D, E, SUM; 
        E = A / 1000 ; 
        B = A / 100% 10 ; 
        C = A / 10% 10 ; 
        D = 10% A ; 
        SUM = B + C + D +e;
        System.out.println(sum);
    }

}

3, turn 50 degrees Fahrenheit to Celsius is how much? ? ? (Fahrenheit and Celsius temperature interchangeable, changing from Fahrenheit
degrees you just subtract 32, multiply by 5 and then divided by 9 on the line, the
Celsius converted into Fahrenheit, directly multiplied by 9, divide by 5, plus
i.e., line 32)

package second Java job; 

Import java.util.Scanner; 

public  class second job Java { 

    public  static  void main (String [] args) {
         // the TODO Auto-Generated Method Stub 
        int HSD = 50 ;
         int SSD; 
        SSD = (HSD-32) *. 5 /. 9 ; 
        System.out.println (SSD); 
    } 

}

4, given an arbitrary capital letters A ~ Z, convert to lower case. (Knowledge: variables and operators)  

Package second Java job; 

Import java.util.Scanner; 

public  class second job Java { 

    public  static  void main (String [] args) {
         // the TODO Auto-Generated Method Stub 
        char A = 'A' ;
         char B = 'A' + 32 ; 
        System.out.println (B); 
    } 

}

2020.3.19 java second job

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