Test on JAVA test P5

Do you like Java programming and want to learn useful knowledge to apply to work? To meet the needs of readers, Network administrators have collected and sent a series of quiz questions about Java programming. Invite your reference.

  1. Question 1. How much of the above block will result if we enter revenue = 1?
     switch (receiver) { 

     case 2: 

     System.out.println ('Van, Toan'); 

     break; 

     case 3: 

     System.out.println ('Flowers, Cups'); 

     break; 

     default: 

     System.out.println ('Immediately'); 

     break; 

     }
    1. Van, Toan
    2. Flowers, Ly
    3. Immediately
    4. There is no answer
  2. Question 2. How much will the above block result if we enter revenue = 2?
     switch (receiver) { 

     case 2: 

     System.out.println ('Van, Toan'); 

     break; 

     case 3: 

     System.out.println ('Flowers, Cups'); 

     break; 

     default: 

     System.out.println ('Immediately'); 

     break; 

     }
    1. Van, Toan

    2. Flowers, Ly

      1. Immediately
    4. There is no right answer
  3. Question 3. How much of the above block will result if we enter revenue = 3?
     switch (receiver) { 

     case 2: 

     System.out.println ('Van, Toan'); 

     break; 

     case 3: 

     System.out.println ('Flowers, Cups'); 

     break; 

     default: 

     System.out.println ('Immediately'); 

     break; 

     }
    1. Van, Toan
    2. Flowers, Ly
    3. Immediately
    4. There is no right answer
  4. Question 4. If color = DEN, what is the above command to print the result?
     mausac enum {DEN, LAM, LUC, PAGE}; 

     mausac color; 

     char * t; 

     switch (color) { 

     case 0: 

     t = 'Mau page'; 

     break; 

     case 1: 

     t = 'Mau den'; 

     break; 

     case 2: 

     t = 'Mau lam'; 

     break; 

     case 3: 

     t = 'Mau luc'; 

     break; 

     default: 

     t = 'Not in the list'; 

     break; 

     } 
     System.out.println (t);

    1. Quick page

    2. black

    3. Quickly
    4. There are no colors in the list
  5. Question 5. If color = DEN, what is the above command to print the result?
     enum mausac {DEN = 3, LAM, LUC, PAGE}; 

     mausac color; 

     char * t; 

     switch (color) { 

     case 0: 

     t = 'Mau page'; 

     break; 

     case 1: 

     t = 'Mau den'; 

     break; 

     case 2: 

     t = 'Mau lam'; 

     break; 

     case 3: 

     t = 'Mau luc'; 

     break; 

     default: 

     t = 'Not in the list'; 

     break; 

     } 

     System.out.println (t);
    1. black
    2. Blue
    3. Quick page
    4. Quickly
  6. Question 6. When executing the above block, what is the result?
     int s = 0; 

     for (int i = 0; i <10; i ++) 

     s + = i; 

     System.out.println (s);
    1. 45
    2. 0
    3. 55
    4. No results were correct
  7. Question 7. What does this block do?
     int [] mang = new int [10]; 

     int s = 0; 

     int j = 0; 

     for (int i: mang) { 

     i = ++ j; 

     s + = i; 

     } 

     System.out.println ('S =' + s);
    1. Enter data for the raw array.
    2. Calculate the total integer array.
    3. Enter data and calculate the integer array.

    4. All is wrong

  8. Question 8. When executing the command block in the figure, what will be the result?
     int [] mang = new int [10]; 

     int s = 0; 

     int j = 0; 

     for (int i: mang) { 

     i = ++ j; 

     s + = i; 

     } 

     System.out.println ('S =' + s);
      1. S = 40
      1. S = 50
    3. S = 55

    4. S = 45

  9. Question 9. When executing the above block, what is the result?
     int [] mang = new int [10]; 

     int s; 

     int j = 0; 

     for (int i: mang) { 

     s = 0; 

     i = ++ j; 

     s + = i; 

     } 

     System.out.println ('S =' + s);
    1. Wrong command
    2. S = 10
      1. S = 45
      1. S = 55
  10. Question 10. When executing the block, what is the result?
     int i = 0; 

     due to { 

     i + = 1; 

     } while (i == 0); 

     System.out.println ('i =' + i);
    1. i = 0
    2. i = 1
    3. i = 2
    4. All is wrong
Update 24 May 2019
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