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| 2.6.10.To do a content comparison, use equals() method rather than the == or != operator. |
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public class MainClass {
public static void main(String[] argv) {
String a = "a";
String b = "a";
if (a.equals(b)) {
System.out.println("==");
}
}
}
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== |
| 2.6.Comparison Operators | | 2.6.1. | Comparison Operator Summary | | | | 2.6.2. | Comparison operators <, <=, >, >=, = =, and != return a boolean result. | | | | 2.6.3. | Comparison operators are commonly used to form conditions | | | | 2.6.4. | The Ordinal Comparisons Operators: <, <=, >, and >= | | | | 2.6.5. | It is acceptable to compare the float value to the char variable c. | | | | 2.6.6. | Ordinal comparisons are not applicable to any non-numeric types. | | | | 2.6.7. | The Equality Comparison Operators: == and != for primitive types | | | | 2.6.8. | The Equality Comparison Operators: == and != for variables of object type | | | | 2.6.9. | You should not use these operators to compare the contents of objects. | | | | 2.6.10. | To do a content comparison, use equals() method rather than the == or != operator. | | | | 2.6.11. | For object references, the == operator returns true only if both references are to the same object. | | | | 2.6.12. | Define your own equals Method | | | | 2.6.13. | The == with Strings Trap | | | | 2.6.14. | "Equality" Operators | | | | 2.6.15. | Equality for Reference Variables | | | | 2.6.16. | Equality for Enums | | |
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