From scratch learn Java-4. Use strings for communication, java-4 string

From scratch learn Java-4. Use strings for communication, java-4 string

1. Use strings to store text;

2. Display strings in the program;

3. the string contains special characters;

4. concatenate strings;

5. include variables in strings;

6. compare strings;

7. Judge the length of the string;

Program Credits: displays the list of directors and actors for a movie.

1 package com. jsample; 2 3 public class Credits {// name the Java program as the beginning of the Credits 4 public static void main (String [] args) {// main () BLOCK statement, all functions of the program are completed here 5 // set up from flim information 6 String title = "Sharknado "; // create the variable 7 int year = 2013 used to store information about directors and actors and films; // one of them is an integer variable, and the other is a String variable 8 String director = "Anthony Ferrante "; 9 String role1 = "Fin"; 10 String actor1 = "Ian Ziering"; 11 String role2 = "April"; 12 String actor2 = "Tara Reid "; 13 String role3 = "George"; 14 String actor3 = "John Heard"; 15 String role4 = "Nova"; 16 String actor4 = "Cassie Scerbo "; 17 // display information18 System. out. println (title + "(" + year + ") \ n" + // long statement, output content 19 "A" + director + "film. \ n "+ // line break \ n is used to wrap 20 role1 +" \ t "+ actor1 +" \ n "+ // tab \ t is used to align 21 role2 + "\ t "+ actor2 +" \ n "+ 22 role3 +" \ t "+ actor3 +" \ n "+ 23 role4 +" \ t "+ actor4 ); 24} // end main () function 25} // end of the program

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Output:

Sharknado (2013)
A Anthony Ferrante film.

Fin Ian Ziering
Mozl Tara Reid
George John Heard
Nova Cassie Scerbo

Program Favorite: completes the word guessing game by comparing two string sizes

 1 package com.jsample; 2  3 public class Favourite { 4     public static void main(String[] args){ 5         String favorite = "chainsaw"; 6         String guess = "pool cue"; 7         System.out.println("Is Fin's favorite weapon a " + guess + "?"); 8         System.out.println("Answer: " + favorite.equals(guess)); 9         System.out.println("Change guess's value from pool cue to chainsaw");10         guess = "chainsaw";11         System.out.println("Answer: " + favorite.equals(guess));12     }13 }

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Output:

Is Fin's favorite weapon a pool cue?
Answer: false
Change guess's value from pool cue to chainsaw
Answer: true

Program: CreditsHighCase: displays the directors and actors (uppercase) of a movie.

1 package com. jsample; 2 3 public class CreditsHighCase {4 public static void main (String [] args) {// start of the main () BLOCK statement, all functions of the program are completed here 5 // set up from film information 6 String title = "Sharknado "; // create the variable 7 8 int year = 2013 used to store information about directors, actors, and films; // one of them is an integer variable, others are String variables 9 String director = "Anthony Ferrante"; 10 director = director. toUpperCase (); 11 12 String role1 = "Fin"; 13 role1 = role1.toUpperCase (); 14 15 15 String actor1 = "Ian Ziering"; 16 actor1 = actor1.toUpperCase (); 17 18 String role2 = "April"; 19 role2 = role2.toUpperCase (); 20 21 String actor2 = "Tara Reid"; 22 actor2 = actor2.toUpperCase (); 23 24 String role3 = "George"; 25 role3 = role3.toUpperCase (); 26 27 String actor3 = "John Heard"; 28 actor3 = actor3.toUpperCase (); 29 30 String role4 = "Nova"; 31 role4 = role4.toUpperCase (); 32 33 String actor4 = "Cassie Scerbo"; 34 actor4 = actor4.toUpperCase (); 35 // display information36 System. out. println (title + "(" + year + ") \ n" + // long statement, output content 37 "A" + director + "film. \ n "+ // line break \ n is used to wrap 38 role1 +" \ t "+ actor1 +" \ n "+ // tab \ t is used to align 39 role2 + "\ t "+ actor2 +" \ n "+ 40 role3 +" \ t "+ actor3 +" \ n "+ 41 role4 +" \ t "+ actor4 ); 42} // end main () function 43}

View Code

Output:

Sharknado (2013)
A anthony ferrante film.

FIN IAN ZIERING
Mozl TARA REID
GEORGE JOHN HEARD
NOVA CASSIE SCERBO