for(元素变量:元素集合) { 程序块; } 解释:如果元素集合中所有元素都被遍历则结束此循环,否则执行程序块。 程序示例: importjava.util.*; publicclasssample{privatevoidprint(){String[]str={"***","Thesampleshowfourusagesof':'","1.switchsentence","2.?condition","3.continueskipping","4.elementreac...