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验证“哥德巴赫猜想” importjava.util.Scanner; publicclassMain{ publicstaticvoidmain(String[]args){ Scannersc=newScanner(System.in); intn=sc.nextInt(); if(n4) System.out.println(“4=2+2”); for(inti=3;i<=n/2;i=i+2){ if(isPrime(i)*isPrime(n‐i)1){ System.out.println(n

函数‐斐波那契数列 importjava.util.Scanner; publicclassMain{ publicstaticvoidmain(String[]args){ Scannersc=newScanner(System.in); intn=sc.nextInt(); System.out.printf("%.0f",fibo(n)); } publicstaticdoublefibo(intn){ doublef[]=newdouble[n]; if(n==1) return1; f[0]=1;