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https://www.youtube.com/watch?v=IYWyfrivZYg&list=UUhwKlOVR041tngjerWxVccw
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Java Tutorial : Java String Comparison |
public class CompareByEqualsDemo { public static void main(String[] args) { String s1 = "Peter"; String s2 = "Peter"; String s3 = new String("Peter"); String s4 = "Dave"; System.out.println(s1.equals(s2));// true System.out.println(s1.equals(s3));// true System.out.println(s1.equals(s4));// false } }
true true false
public class CompareByEqualsIgnoreCaseDemo { public static void main(String[] args) { String s1 = "peter"; String s2 = "PETER"; System.out.println(s1.equals(s2));// false System.out.println(s1.equalsIgnoreCase(s2));// true } }
false true
public class CompareByDemo { public static void main(String[] args) { String s1 = "Peter"; String s2 = "Peter"; String s3 = new String("Peter"); /* * true (because both refer to same instance) */ System.out.println(s1 == s2); /* * false(because s3 refers to instance created in * nonpool) */ System.out.println(s1 == s3); } }
true false
public class CompareByCompareToDemo { public static void main(String[] args) { String s1 = "Sachin"; String s2 = "Sachin"; String s3 = "Ratan"; System.out.println(s1.compareTo(s2));// 0 /* * 1(because s1>s3) */ System.out.println(s1.compareTo(s3)); /* * -1(because s3 < s1 ) */ System.out.println(s3.compareTo(s1)); } }
0 1 -1
https://sites.google.com/site/javaee4321/java/StringDemo_Comparison_App.zip?attredirects=0&d=1
Github Link:
https://github.com/ramram43210/Java/tree/master/BasicJava/StringDemo_Comparison_App
Bitbucket Link:
https://bitbucket.org/ramram43210/java/src/12836b6e32056aa84ee5263036ba2429cc0bd845/BasicJava/StringDemo_Comparison_App/?at=master
See also:
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