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What is a method signature in Java?
The method signature consists of the method name and the parameter list.
Example
public class MethodSignature {
public int add(int a, int b){
int c = a+b;
return c;
}
public static void main(String args[]){
MethodSignature obj = new MethodSignature();
int result = obj.add(56, 34);
System.out.println(result);
}
}
Output
90
Method signature does not include the return type of the method. A class cannot have two methods with same signature. If we try to declare two methods with same signature you will get a compile time error.
public class MethodSignature {
public int add(int a, int b){
int c = a+b;
return c;
}
public double add(int a, int b){
double c = a+b;
return c;
}
public static void main(String args[]){
MethodSignature obj = new MethodSignature();
int result = obj.add(56, 34);
System.out.println(result);
}
}
Error
C:\Sample>javac MethodSignature.java
MethodSignature.java:7: error: method add(int,int) is already defined in class MethodSignature
public double add(int a, int b){
^
1 error
Updated on: 30-Jul-2019
6K+ Views
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