this keyword usage

[harish Jodh]

hello,

could someone please help me understand why s2 and s3 dont get the value passed via constructor :

class ABCD{
	String s1="local";		
	ABCD(String s1){
		this.s1=s1;
	}
	String s2= s1;
	String s3 = this.s1;
	void prt(){
		System.out.println("s1: "+s1);
		System.out.println("s2 : "+ s2);
		System.out.println("s3: "+s3);
		String s4 = s1;
		System.out.println("s4: "+s4);
	}	
	
}
public class NewTest {	
	public static void main(String[] args) {
		ABCD o1 = new ABCD("Passed Value");
		o1.prt();
	}
}

Output:
s1: Passed Value
s2 : local
s3: local
s4: Passed Value

[Jeff Verdegan]

harish Jodh wrote:hello,

could someone please help me understand why s2 and s3 dont get the value passed via constructor :

Because you set them before the c'tor is invoked, not inside the constructor. The fact that you put them after the c'tor in your source file doesn't mean they get executed after the c'tor is run. All those initializer lines are run each time an object is created, before any c'tor is invoked, regardless of where they're placed in the file.