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  1. class Ideone {
  2.   public static void main (String[] args) {
  3.     final String HELL = "Hell";
  4.     final String O = "o";
  5.  
  6.     String s1 = "Hello";
  7.     String s2 = "Hello";
  8.     String s3 = "Hell" + O;
  9.     String s4 = HELL + "o";
  10.     String s5 = new String("Hello");
  11.     String s6 = new String("Hello");
  12.  
  13.     System.out.println(s1 == s2); // true
  14.     System.out.println(s1 == s3); // true
  15.     System.out.println(s1 == s4); // true
  16.     System.out.println(s1 == s5); // false
  17.     System.out.println(s1 == s6); // false
  18.     System.out.println(s2 == s3); // true
  19.     System.out.println(s2 == s4); // true
  20.     System.out.println(s2 == s5); // false
  21.     System.out.println(s2 == s6); // false
  22.     System.out.println(s3 == s4); // true
  23.     System.out.println(s3 == s5); // false
  24.     System.out.println(s3 == s6); // false
  25.     System.out.println(s4 == s5); // false
  26.     System.out.println(s4 == s6); // false
  27.     System.out.println(s5 == s6); // false
  28.   }
  29. }
Success #stdin #stdout 0.08s 27836KB
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stdin
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Standard input is empty
stdout
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true
true
true
false
false
true
true
false
false
true
false
false
false
false
false
https://ideone.com/1hnikI
language:
Java (HotSpot 12)
created:
5 years ago
visibility:
public

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