関連ワード:  explain the key features of java    explain the key features of java that make it a platform independent language    explain the key features of java that differentiate it from other programming languages    explain the key features of javascript    explain the key features of java that make it platform independent and secure    explain the key features of java programming language    explain the key features of java that make it a popular programming language    what are the key features of java    what are the key features of javascript    what are the key features of java that make it platform independent