安装命令 yuminstalljava-1.8.0-openjdkjava-1.8.0-openjdk-devel java-1.8.0-openjdk:只有jre,没有jdk,所以需要安装java-1.8.0-openjdk-devel 查看版本:$java-version 编译java文件:javacHello.java 运行java的编译产物:javaHello
点击打开链接 A.Thenumberofpositions timelimitpertest memorylimitpertest input output n people,buthedoesn'tknowexactlywhichpositionheoccupies.Hecansaythattherearenolessthan a peoplestandinginfrontofhimandnomorethan b Input n, a and b (0 ≤ a, b < ...