What is the command used to retrieve the java files along with the string existence "Hello World" in it$?$

Find $[$PATH$]-$name $""$ java" xargs grep $-$i "Hello World"

Find $[$PATH$]-$file $"*$ java" xargs $-$ i "Hello World"

Find $[$PATH$]-$file $",$ java" Is $-1$ xargs grep $-$i "Hello World"

Find $[$PATH$]-$name $"*$ java" $-$v xargs i "Hello World"