java控制结构

JAVA基础及控制结构练习题1有一函数XXY301352写一程序，输入X,输出Y值。IMPORTJAVAUTILSCANNERPUBLICCLASSJAVAAPPLICATION4PUBLICSTATICVOIDMAINSTRINGARGSINTX,Y0SCANNERSCNEWSCANNERSYSTEMINXSCNEXTINTIFX30Y3X10IFX3ELSERETURNFALSE4从键盘上输入一个大于10的整数，1）判断它是几位数2）求各位上数字和；3）判断哪个位上存在数字4IMPORTJAVAUTILSCANNERPUBLICCLASSJAVAAPPLICATION4PUBLICSTATICVOIDMAINSTRINGARGSINTX,SUM0,T,ISCANNERSCNEWSCANNERSYSTEMINSYSTEMOUTPRINT“X“XSCNEXTINTSYSTEMOUTPRINTLNXIFX0XX/10,ITX10SUMSUMTIFT4SYSTEMOUTPRINTLNI“位上存在4“SYSTEMOUTPRINTLN“X是“I1“位数“SYSTEMOUTPRINTLN“各位上数字和“SUM5编程计算的前30项的和，要求保留3位小数位。169574321PUBLICCLASSJAVAAPPLICATION10PUBLICSTATICVOIDMAINSTRINGARGSDOUBLEX,Y,Z,S,AREA0FORDOUBLEI10I0MM/10TM10SUMSUMTIFSUMNSYSTEMOUTPRINTI“SIFS50SYSTEMOUTPRINTLN8从键盘上输入一个正整数N,求出5位数中各位数字之和等于N的所有素数,每行按6个素数输出。IMPORTJAVAUTILSCANNERPUBLICCLASSJAVAAPPLICATION9PUBLICSTATICVOIDMAINSTRINGARGSINTN,ASCANNERSCNEWSCANNERSYSTEMINSYSTEMOUTPRINT“N“NSCNEXTINTFNSTATICVOIDFINTNINTI,SUM,M,Q,C,K0FORI10000I0MM/10SUMSUMM10IFSUMNQINTMATHSQRTIFORC2CQSYSTEMOUTPRINTI“KIFK60SYSTEMOUTPRINTLN9编程求下式的值N1N2N3N4N10，其中N1,2,3。编写函数时，设置参数N的默认值为2。IMPORTJAVAUTILSCANNERPUBLICCLASSJAVAAPPLICATION9PUBLICSTATICVOIDMAINSTRINGARGSINTN2,ASCANNERSCNEWSCANNERSYSTEMINSYSTEMOUTPRINT“N“NSCNEXTINTSYSTEMOUTPRINTLN“N1N2N3N4N10“FNSTATICINTFINTNINTI,T1,SUM0,JFORI1IN“FN,MSTATICINTFINTN,INTMINTI,T1,SUM0,A1,B1IFM0JSYSTEMOUTPRINT“SCHARAI1SYSTEMOUTPRINTSIFI1I,MFORJ10IJ0JSYSTEMOUTPRINT“SCHARGM1SYS