Arch Linuxii bsh 2.0b4-12build1 Java scripting environment (BeanShell) Version 2 ii bsh-gcj 2.0b4-12build1 Java scripting environment (BeanShell) Version 2 (native code)
# pacman -S beanshell2ローカル変数
So declaring a variable with a type is a way to limit its scope or make a local variable.