[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fRyoAA_ilzYmvb40ynRR21g9eYDTBqBAqvHmRPMFOgjw":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":31,"type":32},[],"2024-04-22 16:41:17",139653319,[8,9,10,11],"编译错误","输出9","输出123456789","运行时出现错误",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},26,"3bedb491489412d6a901cda16180046d","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03caf8ee1ca5d3cf84d91ca5f08b2517.png","JAVA语言程序设计","8a472e29691e4c7ea4208845dcf166c0","模块5异常处理与常用API测试","在编译和运行下列代码时会发生什么?( ). public class Ref { public static void main(String args[]) { String str = "123456789"; char mychar = str.charAt(9); System.out.println(mychar); } }",[21,33,42,52,61,64,74,84,94,104],{"answer":22,"createTime":23,"id":24,"options":25,"question":30,"source":31,"type":32},[],"2024-04-22 16:41:09",139653315,[26,27,28,29],"length","length()","codePointAt()","chatAt()","获取字符串长度应该使用下列哪个方法?( )","v1",0,{"answer":34,"createTime":35,"id":36,"options":37,"question":41,"source":31,"type":32},[],"2024-04-22 16:41:12",139653316,[8,38,39,40],"运行错误","输出23、23和5","输出5、5和23","当编译和运行下列代码时会发生什么?( ). public class Test { public static void main(String[] args) { System.out.println("" + 2 + 3); System.out.println(2 + "" + 3); System.out.println(2 + 3 + ""); } }",{"answer":43,"createTime":44,"id":45,"options":46,"question":51,"source":31,"type":32},[],"2024-04-22 16:41:13",139653317,[47,48,49,50],"text >> = 3","text[3] = 'a'","int length = text.length()","text+12345","如果String text = "MingRiSoft";,则以下哪个选项是合法的?( )",{"answer":53,"createTime":54,"id":55,"options":56,"question":60,"source":31,"type":32},[],"2024-04-22 16:41:15",139653318,[8,57,58,59],"输出ABCEDF","输出ABFDE","输出ABCDE","当编译和运行下列代码时会发生什么?( ). public class Test { public static void main(String[] args) { String text = "ABCD"; text += "E"; text.replace("C", "F"); System.out.println(text); } }",{"answer":62,"createTime":5,"id":6,"options":63,"question":19,"source":31,"type":32},[],[8,9,10,11],{"answer":65,"createTime":66,"id":67,"options":68,"question":73,"source":31,"type":32},[],"2024-04-22 16:41:19",139653320,[69,70,71,72],"java.sql","java.Scanner","java.awt","java.util","Scanner类在哪个包中( )",{"answer":75,"createTime":76,"id":77,"options":78,"question":83,"source":31,"type":32},[],"2024-04-22 16:41:20",139653321,[79,80,81,82],"返回a、","的平方B、 返回a、b的最大值","返回a、b的立方","返回a、b的正弦值","下面这段代码的含义是( ). public static double max (double a,double b){return a>b?a:b;}",{"answer":85,"createTime":86,"id":87,"options":88,"question":93,"source":31,"type":32},[],"2024-04-22 16:41:21",139653322,[89,90,91,92],"random()","abs()","sqrt()","sin()","Math类的方法中获取随机数的方法是( )",{"answer":95,"createTime":96,"id":97,"options":98,"question":103,"source":31,"type":32},[],"2024-04-22 16:41:22",139653323,[99,100,101,102],"abcdefgh","AbCDefGh","ABCDEFGH","AbcdefGH","下面代码的执行结果是( )指令. String str = "AbCDefGh"; String lStr = str.toLowerCase()",{"answer":105,"createTime":106,"id":107,"options":108,"question":113,"source":31,"type":32},[],"2024-04-22 16:41:23",139653324,[109,110,111,112],"0","2","1","5","下面代码中i的值是( ). String str = "mingrikeji"; int i = str.indexOf('i'); System.out.println(i)"]